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encryption-made-for-police-and-military-radios-may-be-easily-cracked

Encryption made for police and military radios may be easily cracked


An encryption algorithm can have weaknesses that could allow an attacker to listen in.

Two years ago, researchers in the Netherlands discovered an intentional backdoor in an encryption algorithm baked into radios used by critical infrastructure–as well as police, intelligence agencies, and military forces around the world–that made any communication secured with the algorithm vulnerable to eavesdropping.

When the researchers publicly disclosed the issue in 2023, the European Telecommunications Standards Institute (ETSI), which developed the algorithm, advised anyone using it for sensitive communication to deploy an end-to-end encryption solution on top of the flawed algorithm to bolster the security of their communications.

But now the same researchers have found that at least one implementation of the end-to-end encryption solution endorsed by ETSI has a similar issue that makes it equally vulnerable to eavesdropping. The encryption algorithm used for the device they examined starts with a 128-bit key, but this gets compressed to 56 bits before it encrypts traffic, making it easier to crack. It’s not clear who is using this implementation of the end-to-end encryption algorithm, nor if anyone using devices with the end-to-end encryption is aware of the security vulnerability in them.

The end-to-end encryption the researchers examined, which is expensive to deploy, is most commonly used in radios for law enforcement agencies, special forces, and covert military and intelligence teams that are involved in national security work and therefore need an extra layer of security. But ETSI’s endorsement of the algorithm two years ago to mitigate flaws found in its lower-level encryption algorithm suggests it may be used more widely now than at the time.

In 2023, Carlo Meijer, Wouter Bokslag, and Jos Wetzels of security firm Midnight Blue, based in the Netherlands, discovered vulnerabilities in encryption algorithms that are part of a European radio standard created by ETSI called TETRA (Terrestrial Trunked Radio), which has been baked into radio systems made by Motorola, Damm, Sepura, and others since the ’90s. The flaws remained unknown publicly until their disclosure, because ETSI refused for decades to let anyone examine the proprietary algorithms. The end-to-end encryption the researchers examined recently is designed to run on top of TETRA encryption algorithms.

The researchers found the issue with the end-to-end encryption (E2EE) only after extracting and reverse-engineering the E2EE algorithm used in a radio made by Sepura. The researchers plan to present their findings today at the BlackHat security conference in Las Vegas.

ETSI, when contacted about the issue, noted that the end-to-end encryption used with TETRA-based radios is not part of the ETSI standard, nor was it created by the organization. Instead it was produced by The Critical Communications Association’s (TCCA) security and fraud prevention group (SFPG). But ETSI and TCCA work closely with one another, and the two organizations include many of the same people. Brian Murgatroyd, former chair of the technical body at ETSI responsible for the TETRA standard as well as the TCCA group that developed the E2EE solution, wrote in an email on behalf of ETSI and the TCCA that end-to-end encryption was not included in the ETSI standard “because at the time it was considered that E2EE would only be used by government groups where national security concerns were involved, and these groups often have special security needs.

For this reason, Murgatroyd noted that purchasers of TETRA-based radios are free to deploy other solutions for end-to-end encryption on their radios, but he acknowledges that the one produced by the TCCA and endorsed by ETSI “is widely used as far as we can tell.”

Although TETRA-based radio devices are not used by police and military in the US, the majority of police forces around the world do use them. These include police forces in Belgium and Scandinavian countries, as well as Eastern European countries like Serbia, Moldova, Bulgaria, and Macedonia, and in the Middle East in Iran, Iraq, Lebanon, and Syria. The Ministries of Defense in Bulgaria, Kazakhstan, and Syria also use them, as do the Polish military counterintelligence agency, the Finnish defense forces, and Lebanon and Saudi Arabia’s intelligence services. It’s not clear, however, how many of these also deploy end-to-end decryption with their radios.

The TETRA standard includes four encryption algorithms—TEA1, TEA2, TEA3 and TEA4—that can be used by radio manufacturers in different products, depending on the intended customer and usage. The algorithms have different levels of security based on whether the radios will be sold in or outside Europe. TEA2, for example, is restricted for use in radios used by police, emergency services, military, and intelligence agencies in Europe. TEA3 is available for police and emergency services radios used outside Europe but only in countries deemed “friendly” to the EU. Only TEA1 is available for radios used by public safety agencies, police agencies, and militaries in countries deemed not friendly to Europe, such as Iran. But it’s also used in critical infrastructure in the US and other countries for machine-to-machine communication in industrial control settings such as pipelines, railways, and electric grids.

All four TETRA encryption algorithms use 80-bit keys to secure communication. But the Dutch researchers revealed in 2023 that TEA1 has a feature that causes its key to get reduced to just 32 bits, which allowed the researchers to crack it in less than a minute.

In the case of the E2EE, the researchers found that the implementation they examined starts with a key that is more secure than ones used in the TETRA algorithms, but it gets reduced to 56 bits, which would potentially let someone decrypt voice and data communications. They also found a second vulnerability that would let someone send fraudulent messages or replay legitimate ones to spread misinformation or confusion to personnel using the radios.

The ability to inject voice traffic and replay messages affects all users of the TCCA end-to-end encryption scheme, according to the researchers. They say this is the result of flaws in the TCCA E2EE protocol design rather than a particular implementation. They also say that “law enforcement end users” have confirmed to them that this flaw is in radios produced by vendors other than Sepura.

But the researchers say only a subset of end-to-end encryption users are likely affected by the reduced-key vulnerability because it depends on how the encryption was implemented in radios sold to various countries.

ETSI’s Murgatroyd said in 2023 that the TEA1 key was reduced to meet export controls for encryption sold to customers outside Europe. He said when the algorithm was created, a key with 32 bits of entropy was considered secure for most uses. Advances in computing power make it less secure now, so when the Dutch researchers exposed the reduced key two years ago, ETSI recommended that customers using TEA1 deploy TCCA’s end-to-end encryption solution on top of it.

But Murgatroyd said the end-to-end encryption algorithm designed by TCCA is different. It doesn’t specify the key length the radios should use because governments using the end-to-end encryption have their own “specific and often proprietary security rules” for the devices they use. Therefore they are able to customize the TCCA encryption algorithm in their devices by working with their radio supplier to select the “encryption algorithm, key management and so on” that is right for them—but only to a degree.

“The choice of encryption algorithm and key is made between supplier and customer organisation, and ETSI has no input to this selection—nor knowledge of which algorithms and key lengths are in use in any system,” he said. But he added that radio manufacturers and customers “will always have to abide by export control regulations.”

The researchers say they cannot verify that the TCCA E2EE doesn’t specify a key length because the TCCA documentation describing the solution is protected by a nondisclosure agreement and provided only to radio vendors. But they note that the E2EE system calls out an “algorithm identifier” number, which means it calls out the specific algorithm it’s using for the end-to-end encryption. These identifiers are not vendor specific, the researchers say, which suggests the identifiers refer to different key variants produced by TCCA—meaning TCCA provides specifications for algorithms that use a 126 bit key or 56 bit key, and radio vendors can configure their devices to use either of these variants, depending on the export controls in place for the purchasing country.

Whether users know their radios could have this vulnerability is unclear. The researchers found a confidential 2006 Sepura product bulletin that someone leaked online, which mentions that “the length of the traffic key … is subject to export control regulations and hence the [encryption system in the device] will be factory configured to support 128, 64, or 56 bit key lengths.” But it’s not clear what Sepura customers receive or if other manufacturers whose radios use a reduced key disclose to customers if their radios use a reduced-key algorithm.

“Some manufacturers have this in brochures; others only mention this in internal communications, and others don’t mention it at all,” says Wetzels. He says they did extensive open-source research to examine vendor documentation and “ found no clear sign of weakening being communicated to end users. So while … there are ‘some’ mentions of the algorithm being weakened, it is not fully transparent at all.”

Sepura did not respond to an inquiry from WIRED.

But Murgatroyd says that because government customers who have opted to use TCCA’s E2EE solution need to know the security of their devices, they are likely to be aware if their systems are using a reduced key.

“As end-to-end encryption is primarily used for government communications, we would expect that the relevant government National Security agencies are fully aware of the capabilities of their end-to-end encryption systems and can advise their users appropriately,” Murgatroyd wrote in his email.

Wetzels is skeptical of this, however. “We consider it highly unlikely non-Western governments are willing to spend literally millions of dollars if they know they’re only getting 56 bits of security,” he says.

This story originally appeared at WIRED.com.

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Wired.com is your essential daily guide to what’s next, delivering the most original and complete take you’ll find anywhere on innovation’s impact on technology, science, business and culture.

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National Academies to fast-track a new climate assessment

The nation’s premier group of scientific advisers announced Thursday that it will conduct an independent, fast-track review of the latest climate science. It will do so with an eye to weighing in on the Trump administration’s planned repeal of the government’s 2009 determination that greenhouse gas emissions harm human health and the environment.

The move by the National Academies of Sciences, Engineering, and Medicine to self-fund the study is a departure from their typical practice of responding to requests by government agencies or Congress for advice. The Academies intend to publicly release it in September, in time to inform the Environmental Protection Agency’s decision on the so-called “endangerment finding,” they said in a prepared statement.

“It is critical that federal policymaking is informed by the best available scientific evidence,” said Marcia McNutt, president of the National Academy of Sciences. “Decades of climate research and data have yielded expanded understanding of how greenhouse gases affect the climate. We are undertaking this fresh examination of the latest climate science in order to provide the most up-to-date assessment to policymakers and the public.”

The Academies are private, nonprofit institutions that operate under an 1863 congressional charter, signed by President Abraham Lincoln, directing them to provide independent, objective analysis and advice to inform public policy decisions.

The Trump administration’s move to rescind the endangerment finding, announced last month, would eliminate the legal underpinning of the most important actions the federal government has taken on climate change—regulation of carbon pollution from motor vehicles and power plants under the Clean Air Act. Since assuming his role, EPA Administrator Lee Zeldin has made clear he intends to repeal the climate rules that were put in place under the Biden administration, but his job will be far easier with the elimination of the endangerment finding.

The EPA based its proposal mainly on a narrow interpretation of the agency’s legal authority, but the agency also cited uncertainties in the science, pointing to a report published the same day by the Department of Energy that was authored by a hand-picked quintet of well-known skeptics of the mainstream consensus on climate change. The administration has given a short window of opportunity—30 days—for the public to respond to its endangerment finding proposal and to the DOE report on climate science.

The EPA did not immediately respond to a request for comment on the announcement by the National Academies. Critics of the Trump administration’s approach applauded the decision by the scientific panel.

“I think the National Academies have identified a very fundamental need that is not being met, which is the need for independent, disinterested expert advice on what the science is telling us,” said Bob Sussman, who served as deputy administrator of the EPA in the Clinton administration and was a senior adviser in the agency during the Obama administration.

Earlier Thursday, before the National Academies announcement, Sussman posted a blog at the Environmental Law Institute website calling for a “blue-ribbon review” of the science around the endangerment finding. Sussman noted the review of the state of climate science that the National Academies conducted in 2001 at the request of President George W. Bush’s administration. Since then, the Academies have conducted numerous studies on aspects of climate change, including the development of a “climate-ready workforce,” how to power AI sustainably, and emerging technologies for removing carbon from the atmosphere, for example.

The National Academies announced in 2023 that they were developing a rapid response capacity to address the many emerging scientific policy issues the nation was facing. The first project they worked on was an assessment of the state of science around diagnostics for avian influenza.

Andrew Dessler, director of the Texas Center for Extreme Weather at Texas A&M University, said the new controversy that the Trump administration had stirred around climate science was a fitting subject for a fast-track effort by the National Academies.

“The National Academies [were] established exactly to do things like this—to answer questions of scientific importance for the government,” he said. “This is what the DOE should have done all along, rather than hire five people who represent a tiny minority of the scientific community and have views that virtually nobody else agrees with.”

Dessler is leading an effort to coordinate a response from the scientific community to the DOE report, which would also be submitted to the EPA. He said that he had heard from about 70 academics eager to participate after putting out a call on the social media network Bluesky. He said that work will continue because it seems to have a slightly different focus than the National Academies’ announced review, which does not mention the DOE report but talks about focusing on the scientific evidence on the harms of greenhouse gas emissions that has emerged since 2009, the year the endangerment finding was adopted by the EPA.

This story originally appeared on Inside Climate News.

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President Trump says Intel’s new CEO “must resign immediately”

Intel and the White House did not immediately respond to a request for comment on Trump’s post. Intel shares dropped 3 percent in pre-market trading in New York.

Tan was appointed as Intel CEO in March after the Silicon Valley company’s board ousted his predecessor, Pat Gelsinger, in December.

Intel is the only US-headquartered company capable of producing advanced semiconductors, though it has so far largely missed out on the current boom for artificial intelligence chips. It has been awarded billions of dollars in US government subsidies and loans to support its chip manufacturing business, which has fallen far behind its rival Taiwan Semiconductor Manufacturing Company.

However, amid a radical cost-cutting program, Tan warned last month that Intel might be forced to abandon development of its next-generation manufacturing technology if it were unable to secure a “significant external customer.” Such a move would hand a virtual monopoly of leading-edge chipmaking to TSMC.

“Intel is required to be a responsible steward of American taxpayer dollars and to comply with applicable security regulations,” Cotton wrote in Tuesday’s letter to Intel’s board chair, Frank Yeary. “Mr Tan’s associations raise questions about Intel’s ability to fulfill these obligations.”

Additional reporting by Demetri Sevastopulo.

© 2025 The Financial Times Ltd. All rights reserved. Not to be redistributed, copied, or modified in any way.

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States take the lead in AI regulation as federal government steers clear

AI in health care

In the first half of 2025, 34 states introduced over 250 AI-related health bills. The bills generally fall into four categories: disclosure requirements, consumer protection, insurers’ use of AI, and clinicians’ use of AI.

Bills about transparency define requirements for information that AI system developers and organizations that deploy the systems disclose.

Consumer protection bills aim to keep AI systems from unfairly discriminating against some people and ensure that users of the systems have a way to contest decisions made using the technology.

Bills covering insurers provide oversight of the payers’ use of AI to make decisions about health care approvals and payments. And bills about clinical uses of AI regulate use of the technology in diagnosing and treating patients.

Facial recognition and surveillance

In the US, a long-standing legal doctrine that applies to privacy protection issues, including facial surveillance, is to protect individual autonomy against interference from the government. In this context, facial recognition technologies pose significant privacy challenges as well as risks from potential biases.

Facial recognition software, commonly used in predictive policing and national security, has exhibited biases against people of color and consequently is often considered a threat to civil liberties. A pathbreaking study by computer scientists Joy Buolamwini and Timnit Gebru found that facial recognition software poses significant challenges for Black people and other historically disadvantaged minorities. Facial recognition software was less likely to correctly identify darker faces.

Bias also creeps into the data used to train these algorithms, for example when the composition of teams that guide the development of such facial recognition software lack diversity.

By the end of 2024, 15 states in the US had enacted laws to limit the potential harms from facial recognition. Some elements of state-level regulations are requirements on vendors to publish bias test reports and data management practices, as well as the need for human review in the use of these technologies.

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“Red meat allergy” from tick bites is spreading both in US and globally


Remember to check for ticks after your next stroll through the woods or long grasses.

Hours after savoring that perfectly grilled steak on a beautiful summer evening, your body turns traitor, declaring war on the very meal you just enjoyed. You begin to feel excruciating itchiness, pain, or even swelling that can escalate to the point of requiring emergency care.

The culprit isn’t food poisoning—it’s the fallout from a tick bite you may have gotten months earlier and didn’t even notice.

This delayed allergic reaction is called alpha-gal syndrome. While it’s commonly called the “red meat allergy,” that nickname is misleading, because alpha-gal syndrome can cause strong reactions to many products, beyond just red meat.

The syndrome is also rapidly spreading in the US and around the globe. The Centers for Disease Control and Prevention estimates as many as 450,000 people in the US may have it. And it’s carried by many more tick species than most people realize.

Map showing alpha-gal syndrome prevalence.

Cases of suspected alpha-gal syndrome based on confirmed laboratory evidence.

Credit: CDC

Cases of suspected alpha-gal syndrome based on confirmed laboratory evidence. Credit: CDC

What is alpha-gal syndrome?

Alpha-gal syndrome is actually an allergy to a sugar molecule with a tongue-twisting name: galactose-alpha-1,3-galactose, shortened to alpha-gal.

The alpha-gal sugar molecule exists in the tissues of most mammals, including cows, pigs, deer, and rabbits. But it’s absent in humans. When a big dose of alpha-gal gets into your bloodstream through a tick bite, it can send your immune system into overdrive to generate antibodies against alpha-gal. In later exposure to foods containing alpha-gal, your immune system might then launch an inappropriate allergic response.

Picture of lone star tick

A lone star tick (Amblyomma americanum). The tick can cause alpha-gal syndrome as well as carry other diseases, including ehrlichiosis, tularemia, and Southern tick-associated rash illness.

A lone star tick (Amblyomma americanum). The tick can cause alpha-gal syndrome as well as carry other diseases, including ehrlichiosis, tularemia, and Southern tick-associated rash illness. Credit: wildpixel/Getty

Often this allergy is triggered by eating red meat. But the allergy also can be set off by exposure to a range of other animal-based products, including dairy products, gelatin (think Jell-O or gummy bears), medications, and even some personal care items. The drug heparin, used to prevent blood clotting during surgery, is extracted from pig intestines, and its use has triggered a dangerous reaction in some people with alpha-gal syndrome.

Once you have alpha-gal syndrome, it’s possible to get over the allergy if you can modify your diet enough to avoid triggering another reaction for a few years and also avoid more tick bites. But that takes time and careful attention to the less obvious triggers that you might be exposed to.

Why more people are being diagnosed

As an entomologist who studies bugs and the diseases they transmit, what I find alarming is how rapidly this allergy is spreading around the globe.

Several years ago, experts thought alpha-gal syndrome was primarily limited to the Southeastern US because it was largely associated with the geographical range of the lone star tick.

photo of tick feeding on human

How a tick feeds.

However, both local and global reports have now identified many different tick species across six continents that are capable of causing alpha-gal syndrome, including the prolific black-legged tick, or deer tick, which also transmits Lyme disease.

These ticks lurk in yards and urban parks, as well as forests where they can stealthily grab onto hikers when they touch tick-infested vegetation. As tick populations boom with growing deer and human populations, the number of people with alpha-gal syndrome is escalating.

Why ticks are blamed for alpha-gal syndrome

There are a few theories on how a tick bite triggers alpha-gal syndrome and why only a small proportion of people bitten develop the allergy. To understand the theories, it helps to understand what happens as a tick starts feeding on you.

When a tick finds you, it typically looks for a warm, dark area to hide and attach itself to your body. Then its serrated teeth chew through your skin with rapid sawing motions.

As it excavates deeper into your skin, the tick deploys a barbed feeding tube, like a miniature drilling rig, and it secretes a biological cement that anchors its head into its new tunnel.

A tick’s mouth is barbed so it can stay embedded in your skin as it draws blood over hours and sometimes days.

Credit: National Institute of Allergy and Infectious Diseases

A tick’s mouth is barbed so it can stay embedded in your skin as it draws blood over hours and sometimes days. Credit: National Institute of Allergy and Infectious Diseases

Once secure, the tick activates its pumping station, injecting copious amounts of saliva containing anesthetics, blood thinners, and, sometimes, alpha-gal sugars into the wound so it can feed undetected, sometimes for days.

One theory about how a tick bite causes alpha-gal syndrome is linked to the enormous quantity of tick saliva released during feeding, which activates the body’s strong immune response. Another suggests how the skin is damaged as the tick feeds and the possible effect of the tick’s regurgitated stomach contents into the bite site are to blame. Or it may be a combination of these and other triggers. Scientists are still investigating the causes.

What an allergic reaction feels like

The allergy doesn’t begin right away. Typically, one to three months after the sensitizing tick bite, a person with alpha-gal syndrome has their first disturbing reaction.

Alpha-gal syndrome produces symptoms that range from hives or swelling to crushing abdominal pain, violent nausea, or even life-threatening anaphylactic shock. The symptoms usually start two to six hours after a person has ingested a meat product containing alpha-gal.

Due to a general lack of awareness about the allergy, however, doctors can easily miss the diagnosis. A study in 2022 found that 42 percent of US health care practitioners had never heard of alpha-gal syndrome. A decade ago, people with alpha-gal syndrome might go years before the cause of their symptoms was accurately diagnosed. Today, the diagnosis is faster in areas where doctors are familiar with the syndrome, but in many parts of the country it can still take time and multiple doctor visits.

Unfortunately, with every additional tick bite or exposure to food or products containing alpha-gal, the allergy can increase in severity.

Chart showing tick relative sizes

The lone star tick isn’t the only one that can cause alpha-gal syndrome. Black-legged ticks have also been connected to cases.

Credit: US Army

The lone star tick isn’t the only one that can cause alpha-gal syndrome. Black-legged ticks have also been connected to cases. Credit: US Army

If you think you have alpha-gal syndrome

If you suspect you may have alpha-gal syndrome, the first step is to discuss the possibility with your doctor and ask them to order a simple blood test to measure whether your immune system is reacting to alpha-gal.

If you test positive, the main strategy for managing the allergy is to avoid eating any food product from a mammal, including milk and cheese, as well as other potential triggers, such as more tick bites.

Read labels carefully. Some products contain additives such as carrageenan, which is derived from red algae and contains alpha-gal.

In extreme cases, people with alpha-gal syndrome may need to carry an EpiPen to prevent anaphylactic shock. Reputable websites, such as the CDC and alphagalinformation.org, can provide more information and advice.

Mysteries remain as alpha-gal syndrome spreads

Since alpha-gal syndrome was first formally documented in the early 2000s, scientists have made progress in understanding this puzzling condition. Researchers have connected the allergy to specific tick bites and found that people with the allergy can have a higher risk of heart disease, even without allergy symptoms.

But important mysteries remain.

Scientists are still figuring out exactly how the tick bite tricks the human immune system and why tick saliva is a trigger for only some people. With growing public interest in alpha-gal syndrome, the next decade could bring breakthroughs in preventing, diagnosing, and treating this condition.

For now, the next time you are strolling in the woods or in long grasses, remember to check for ticks on your body, wear long sleeves, long pants, and tick repellent to protect yourself from these bloodthirsty hitchhikers. If you do get bitten by a tick, watch out for odd allergic symptoms to appear a few hours after your next steak or handful of gummy bears.

Lee Rafuse Haines is associate research professor of molecular parasitology and medical entomology at University of Notre Dame.

This article is republished from The Conversation under a Creative Commons license. Read the original article.

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The Conversation is an independent source of news and views, sourced from the academic and research community. Our team of editors work with these experts to share their knowledge with the wider public. Our aim is to allow for better understanding of current affairs and complex issues, and hopefully improve the quality of public discourse on them.

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Idaho has become the wild frontier of vaccination policy and public health


Idaho charts a new path as trust in public health craters.

Some 280,000 people live in the five northernmost counties of Idaho. One of the key public officials responsible for their health is Thomas Fletcher, a retired radiologist who lives on a 160-acre farm near Sandpoint.

Fletcher grew up in Texas and moved to Idaho in 2016, looking for a place where he could live a rural life alongside likeminded conservatives. In 2022, he joined the seven-member board of health of the Panhandle Health District, the regional public health authority, and he was appointed chairman last summer.

PHD handles everything from cancer screenings to restaurant hygiene inspections, and the business of the board is often mundane, almost invisible. Then, this February, Fletcher issued a short announcement online. Parents, he wrote, should be informed of the potential harms of common childhood vaccines. It was time for the board to discuss how best to communicate those risks, rather than “withholding information contra the CDC narrative.” Fletcher invited everyone who believes in “full disclosure and transparency when providing informed consent on childhood vaccines” to attend the next monthly meeting of the board, on a Thursday afternoon.

PHD board meetings tend to be sparsely attended. This one was standing-room only—the start of a monthslong debate over vaccine safety and the question of what, exactly, it means to provide informed consent.

Versions of that debate are playing out across the United States in the aftermath of the COVID-19 pandemic, which many Americans believe was badly mismanaged. The backlash has upended longstanding norms in public health: The nation’s top health official, Robert F. Kennedy Jr., publicly questions the value of common vaccines. Prominent vaccine skeptics now sit on a key advisory committee that shapes immunization practices nationwide. Polls suggest that trust in health authorities is politically polarized — and perhaps historically low. Immunization rates are dropping across the country. And many advocates are promoting a vision of public health that’s less dependent on mandates and appeals to authority, and more deferent to individuals’ beliefs.

Much of that energy has been reflected in Kennedy’s Make American Healthy Again, or MAHA, movement. The coalition is diverse — and has sometimes fractured over vaccination issues—but often channels a long-running argument that Americans should have more freedom to choose or reject vaccines and other health measures.

The backlash against traditional health authorities, said Columbia University medical historian James Colgrove, is unprecedented in recent US history. “It’s been a very, very long time since we’ve been in a place like this,” he said.

Perhaps more than anywhere else in the country, Idaho has experienced these shifts—an ongoing experiment that shows what it looks like to put a vision of individual health freedom into practice. And places like the Panhandle Health District have become testing grounds for big questions: What happens when communities move away from widespread and mandated vaccination? And what does it mean to turn MAHA principles into local public health policy?

During a recent visit to Idaho, Kennedy described the state as “the home of medical freedom.” In April, Gov. Brad Little signed the Idaho Medical Freedom Act, which bans schools, businesses, and government agencies from requiring people to participate in medical interventions, such as mask-wearing or vaccination, in order to receive services. It’s the first legislation of its kind in the country. The bill has a carveout that keeps school vaccine requirements in place, but those requirements are already mostly symbolic: The state’s exemption policy is so broad that, as one Idaho pediatrician told Undark, “you can write on a napkin, ‘I don’t want my kids to get shots because of philosophical reasons,’ and they can go to kindergarten.” Overall, reported vaccination rates for kindergarteners in Idaho are now lower than in any other state that reported data to the federal government—especially in the Panhandle Health District, where fewer than two-thirds arrive with records showing that they are up-to-date on common shots.

“It’s really kind of like watching a car accident in slow motion,” said Ted Epperly, a physician and the CEO of Full Circle Health, which operates a network of clinics in the Boise area.

Photo of Idaho countryside

A view of Sandpoint, Idaho, which sits on the shores of Lake Pend Oreille. The city, a part of Bonner County, is served by the Panhandle Health District.

Credit: Kirk Fisher/iStock/Getty Images Plus

A view of Sandpoint, Idaho, which sits on the shores of Lake Pend Oreille. The city, a part of Bonner County, is served by the Panhandle Health District. Credit: Kirk Fisher/iStock/Getty Images Plus

Public health leaders often ascribe the low vaccination rates to the work of bad-faith actors who profit from falsehoods, to the spread of misinformation, or to failures of communication: If only leaders could better explain the benefits of vaccination, this thinking goes, more people would get shots.

In interviews and public statements, health freedom advocates in Idaho describe a far deeper rift: They do not believe that public health institutions are competent or trustworthy. And restoring that trust, they argue, will require radical changes.

Fletcher, for his part, describes himself as an admirer of RFK Jr. and the Make America Healthy Again movement. With the recent appointment of a new member, he said, MAHA supporters now hold a majority on the board, where they are poised to reimagine public health work in the district.

Local public health

In the US, public health is mostly local. Agencies like the Centers for Disease Control and Prevention conduct research and issue influential recommendations. But much of the actual power rests with the country’s thousands of state, local, and tribal public health authorities—with institutions, in other words, like the Panhandle Health District, and with leaders like Fletcher and his fellow PHD board of health member Duke Johnson.

Johnson says he grew up in Coeur d’Alene, Idaho, in the 1960s, the descendant of homesteaders who arrived in the 19th century. He attended medical school at the University of California, Los Angeles and eventually returned to Idaho, where he runs a family medical practice and dietary supplement business in the town of Hayden.

In Idaho, health boards are appointed by elected county commissioners. The commissioners of Kootenai County gave Johnson the nod in July 2023. Johnson took the role, he said, in order to restore trust in a medical system that he characterized as beholden to rigid dogmas and protocols rather than independent thinking.

In interviews and public statements, health freedom advocates in Idaho describe a far deeper rift: They do not believe that public health institutions are competent or trustworthy.

Last winter, Johnson took a tour of one of the PHD clinics. Among other services, it provides routine childhood immunizations, especially for families with limited access to health care. As is standard in pediatrics practices, the clinic hands out flyers from the CDC that review the potential side effects of common vaccines, including “a very remote chance” of severe outcomes. Johnson was unimpressed with the CDC writeup. “I thought: This isn’t completely covering all of the risk-benefit ratio,” Johnson said. He felt families could be better informed about what he sees as the substantial risks of common shots.

Johnson is an outlier among physicians. The overwhelming majority of laboratory scientists, epidemiologists, and pediatricians who have devoted their lives to the study of childhood disease say that routine immunizations are beneficial, and that serious side effects are rare. Large-scale studies have repeatedly failed to find purported links between the measles-mumps-rubella, or MMR, vaccine and autism, or to identify high rates of severe side effects for other routine childhood immunizations. The introduction of mass vaccinations in the US in the 1950s and 1960s was followed by dramatic declines in the rates of childhood diseases like polio and measles that once killed hundreds of American children each year, and sent tens of thousands more to the hospital. Similar declines have been recorded around the world.

Children can suffer side effects from common shots like the MMR vaccine, ranging from mild symptoms like a rash or fever to rare fatal complications. Public health agencies and vaccine manufacturers study and track those side effects. But today, many Americans simply do not trust that those institutions are being transparent about the risks of vaccination.

Johnson shares some of those concerns. The website for his clinic, Heart of Hope Health, describes offering services for “injection-injured” patients, encouraging them to receive a $449 heart scan, and advertises “no forced masks or vaccinations.” (During a PHD board meeting, Johnson said that one of his own children suffered an apparent bad reaction to a vaccine many years ago.) “The lack of trust in established medicine is probably 10 times bigger than the people at Harvard Medical School realize,” Johnson told Undark during an evening phone call, after a long day seeing patients. Top medical institutions have brilliant scientists on staff, he continued. But, he suggested, those experts have lost touch with how they’re seen by much of the public: “I think sometimes you can spend so much time talking to the same people who agree with you that you’re not reaching the people on the street who are the ones who need the care. And I’m in the trenches.”

Many public health experts agree that restoring trust is an urgent priority, and they are convinced that it will come through better communication, a reduction in the circulation of misinformation, and a re-building of relationships. Johnson and others in the health freedom movement frequently adopt the language of restoring trust, too. But for them, the process tends to mean something different: an overhaul of public health institutions and a frank accounting of their perceived failures.

At the board meeting in February, Johnson laid out the proposal for a change in policy: What if the board wrote up its own document for parents, explaining the evidence behind specific vaccines, and laying out the risks and benefits of the shots? The goal, he told Undark, was “to make sure that the people that we’re responsible for in our in our district can make an informed decision.”

Fletcher was also hoping to change the way PHD communicated about vaccines. Why did a push for informed consent appeal to him? “I can summarize the answer to that question with one word,” Fletcher said. “COVID.”

Nobody’s telling me what to do

Idaho is ideologically diverse, with blue pockets in cities like Boise, and texture to its overwhelming Republican majority. (Latter-Day Saint conservatives in East Idaho, for example, may not always be aligned with government-skeptical activists clustered in the north.) Parts of the state have a reputation for libertarian politics—and for resistance to perceived excesses of government authority.

People came West because “they wanted to get out to a place where nobody would tell them what to do,” said Epperly, the Boise-area physician and administrator. That libertarian ethos, he said, can sometimes translate into a skepticism of things like school vaccination requirements, even as plenty of Idahoans, including Epperly, embrace them.

Like all US states, Idaho technically requires vaccination for children to attend school. But it is relatively easy to opt out of the requirement. In 2021, Idaho lawmakers went further, instructing schools to be proactive and notify parents they had the option to claim an exemption.

“Idaho has some of the strongest languages in the US when it comes to parental rights and vaccine exemptions,” the vaccine-skeptical advocacy group Health Freedom Idaho wrote in 2021. In the 2024–2025 school year, more than 15 percent of kindergarten parents in the state claimed a non-medical exemption, the highest percentage, by far, of the states that reported data.

The pandemic, Epperly and other Idaho health care practitioners said, accelerated many of these trends. In his view, much of that backlash was about authority and control. “The pandemic acted as a catalyst to increase this sense of governmental overreach, if you will,” he said. The thinking, he added, was: “‘How dare the federal government mandate that we wear masks, that we socially distance, that we hand-wash?’”

Recently, advocates have pushed to remove medical mandates in the state altogether through the Idaho Medical Freedom Act, which curtails the ability of local governments, businesses, and schools to impose things like mask mandates or vaccine requirements.

The author of the original bill is Leslie Manookian, an Idaho activist who has campaigned against what she describes as the pervasive dangers of some vaccines, and who leads a national nonprofit, the Health Freedom Defense Fund. In testimony to an Idaho state Senate committee this February, she described feeling shocked by mitigation measures during the COVID-19 pandemic. “Growing up, I could have never, ever imagined that Idaho would become a place that locked its people down, forced citizens to cover their faces, stand on floor markers 6 feet apart, or produce proof of vaccination in order to enter a venue or a business,” Manookian told the senators.

“Idaho has some of the strongest languages in the US when it comes to parental rights and vaccine exemptions.”

Where some public health officials saw vital interventions for the public’s well-being, Manookian saw a form of government overreach, based on scant evidence. Her home state, she argued, could be a leader in building a post-COVID vision of public health. “Idaho wants to be the shining light on the Hill, that leads the way for the rest of the nation in understanding that we and we alone are sovereign over our bodies, and that our God-given rights belong to us and to no one else,” Manookian said during the hearing. A modified version of the bill passed both houses with large majorities, and became law in April.

Epperly, like many physicians and public health workers in the state, has watched these changes with concern. The family medicine specialist grew up in Idaho. During the pandemic, he was a prominent local figure advocating for masking and COVID-19 vaccinations. When the pandemic began, he had been serving on the board of the Boise-area Central District Health department for more than a decade. Then, in 2021, Ada County commissioners declined to renew his appointment, selecting a physician and vocal opponent of COVID-19 vaccines instead.

A transformative experience

For Thomas Fletcher, the Panhandle Health District board of health chair, the experience of the pandemic was transformative. Fletcher has strong political views; he moved away from Texas, in part, over concerns that the culture there was growing too liberal, and out of a desire to live in a place that was, as he put it, “more representative of America circa 1950.” But before the pandemic, he said, although he was a practicing physician, he rarely thought about public health.

Then COVID-19 arrived, and it felt to him that official messaging was disconnected from reality. In early 2020, the World Health Organization said that COVID-19 was not an airborne virus. (There’s a scientific consensus today that it actually is.) Prominent scientists argued that it was a conspiracy theory to say that COVID-19 emerged from a lab. (The issue is still hotly debated, but many scientists now acknowledge that a lab leak is a real possibility.) The World Health Organization appeared to indicate that the fatality rate of COVID-19 was upwards of 3 percent. (It’s far lower.)

Many people today understand these reversals as the results of miscommunications, evolving evidence, or good-faith scientific error. Fletcher came to believe that Anthony Fauci—a member of the White House Coronavirus Task Force during the pandemic—and other public health leaders were intentionally, maliciously misleading the public. Fletcher reads widely on the platform Substack, particularly writers who push against the medical establishment, and he concluded that COVID-19 vaccines were dangerous, too—a toxic substance pushed by pharma, and backed knowingly by the medical elite. “They lied to us,” he said.

That shift ultimately led the retired physician to question foundational ideas in his field. “Once you realize they’re lying to us, then you ask the question, ‘Well, where else are they lying?’” Fletcher said during one of several lengthy phone conversations with Undark. “I was a card-carrying allopathic physician,” he said. “I believed in the gospel.” But he soon began to question the evidence behind cholesterol medication, and then antidepressants, and then the childhood vaccination schedule.

In 2022, lawmakers in Bonner County appointed Fletcher to the board of health. Last year, he took the helm of the board, which oversees an approximately 90-person agency with a $12 million budget.

“As Chairman of Panhandle Health, I feel a certain urge to restore the trust—public trust in public health—because that trust has been violated,” he said.

The informed consent measure seemed like one way to get there.

Conversations around informed consent

On a February afternoon, in a conference room at the health district office in Hayden, a few dozen attendees and board members gathered to discuss vaccination policy and informed consent in the district.

During the lengthy public comment periods, members of the public spoke about their experiences with vaccination. One woman described witnessing the harms of diseases that have been suppressed by vaccination, noting that her mother has experienced weakness in her limbs as the result of a childhood polio infection. Several attendees reported firsthand encounters with what they understood to be vaccine side effects; one cited rising autism rates. They wanted parents to hear more about those possibilities before getting shots.

In response, some local pediatrics providers insisted they already facilitated informed consent, through detailed conversations with caregivers. They also stressed the importance of routine shots; one brought up the measles outbreak emerging in Texas, which would go on to be implicated in the deaths of two unvaccinated children.

“Once you realize they’re lying to us, then you ask the question, ‘Well, where else are they lying?’”

Johnson, defending the measure, proposed a document that listed both pros and cons for vaccination. The PHD Board, he argued, “would have a much better chance of providing good information than the average person on the Internet.”

The conversation soon bogged down over what, exactly, the document should look like. “If the vote is yay or nay for informed consent, I’m all in with two hands,” said board member Jessica Jameson, an anesthesiologist who ultimately voted against the measure. “But my concern is that we have to be very careful about the information we present and the way that it’s presented.” The board members, she added, were neither “the subject matter experts nor the stakeholders,” and studies that seemed strong on first-glance could be subject to critique.

Marty Williams, a nurse practitioner in Coeur d’Alene who works in pediatrics, had heard about the meeting that morning, as materials about the measure circulated online.

Williams is a former wildland firefighter, a father of five, and a Christian; he snowboards and bowhunts in his free time, and speaks with the laid-back affect of someone who has spent years coaching anxious parents through childhood scrapes and illnesses. A document associated with the proposal looked to him less like an attempt at informed consent, and more like a bid to talk parents out of giving their children immunizations. “If you read this, you would be like, ‘Well, I would never vaccinate my child,’” he recalled. “It was beyond informed consent. It seemed to be full of bias.”

He and his practice partner, Jeanna Padilla, canceled appointments in order to attend the meeting and speak during a public comment period. “The thought of it coming from our public health department made me sick,” Williams said. “We’re in the business of trying to prevent disease, and I had a strong feeling that this was going to bring more fear onto an already anxiety-provoking subject.” The issue felt high-stakes to him: That winter, he had seen more cases of pertussis, a vaccine-preventable illness, than at any point in his 18-year career.

Williams has always encountered some parents who are hesitant about vaccination. But those numbers began to rise during the COVID-19 pandemic. Trust in public health was dropping, and recommendations to vaccinate children against COVID-19, in particular, worried him. “Is this going to push people over the edge, where they just withdraw completely from vaccines?” he wondered at the time. Something did shift, he said: “We have families that historically have vaccinated their children, and now they have a new baby, and they’re like, ‘Nope, we’re not doing it. Nope, nope, nope.’”

In his practice, Williams described a change in how he’s approached parents. “I don’t say, ‘Well, you know, it’s time for Junior’s two months shots. Here’s what we’re going to do.’ I don’t approach it that way anymore, because greater than 40 or 50 percent of people are going to say, ‘Well, no, I’m not doing vaccines. And they get defensive right away,’” he said. Instead, he now opens up a conversation, asking families whether they’ve thought about vaccination, answering their questions, providing resources, talking about his personal experiences treating illness—even inviting them to consider the vaccine schedules used in Denmark or Sweden, which recommend shots for fewer diseases, if they are adamant about not following CDC guidelines.

The approach can be effective, he said, but also time-consuming and draining. “It’s emotional for me too, because there’s a piece of this that being questioned every single day in regards to the standard of care, as if you’re harming children,” he said.

“If you read this, you would be like, ‘Well, I would never vaccinate my child.’ It was beyond informed consent. It seemed to be full of bias.”

Williams doubts his comments at the February meeting achieved much. “I was shocked by what I was hearing, because it was so one-sided,” he said. What seemed to be missing, he said, was an honest account of the alternatives: “There was no discussion of, OK, then, if we don’t vaccinate children, what is our option? How else are we going to protect them from diseases that our grandparents dealt with that we don’t have to deal with in this country?”

The board punted: They’d discuss the issue again down the road.

This isn’t new

Versions of this debate have played out across Idaho—and across the country — since the end of COVID-19’s emergency phase. In an apparent national first, one Idaho health district banned COVID-19 vaccines altogether. In Louisiana, Surgeon General Ralph Abraham told public health departments to stop recommending specific vaccines. “Government should admit the limitations of its role in people’s lives and pull back its tentacles from the practice of medicine,” Abraham and his deputy wrote in a statement explaining the decision. “The path to regaining public trust lies in acknowledging past missteps, refocusing on unbiased data collection, and providing transparent, balanced information for people to make their own health decisions.”

In several states, Republican lawmakers have moved to make it easier for people to opt out of vaccines. Not all those efforts have been successful: In West Virginia this past March, for example, the Republican-dominated legislature rejected a bill that would have made it easier to obtain exemptions. Keith Marple, a Republican lawmaker who voted against the measure, cited his personal experiences with people who had been left disabled by polio. “West Virginia needs to look after its children,” he said, according to the news site West Virginia Watch.

In an apparent national first, one Idaho health district banned COVID-19 vaccines altogether.

In Idaho, like many states, vaccination rates have dropped. In the 2023-2024 school year, a bit more than 65 percent of kindergarten families in the Panhandle Health District furnished records showing they’ve received the MMR vaccine and five other common immunizations, down from just over 69 percent in the 2019-2020 school year. (State officials note that some children may have received shots, but their parents did not submit the paperwork to prove it.) Such figures, infectious disease modelers say, leave the area vulnerable to outbreaks of measles and other illnesses.

During an interview with Undark earlier this year, Sarah Leeds, who directs the immunization program for the Idaho Department of Health and Welfare, noted her colleagues across the country are reporting resistance to their work. “Sometimes it’s hard when you might be feeling like people think we’re the villain,” she said. “But I know our team and our leadership knows we do good work, and it’s based on sound science, and it’s important work for the community. And we just keep that at the front of our minds.”

When the board reconvened in early March, more advocates for the informed consent policy came out to back it. Among them was Rick Kirschner, a retired naturopathic doctor, author, and speaker. (His best-known book is titled “Dealing With People You Can’t Stand.”) Kirschner lived for decades in Ashland, Oregon. Early in 2020, he began to diverge from his neighbors over COVID-19 policies. He and his wife visited north Idaho that summer, and bought a home there weeks later. Compared to pandemic-conscious Oregon, it felt like a different reality. That Thanksgiving, he said during a recent Zoom interview, they attended a celebration “with 10 families and all their kids running around. It just was, ‘Oh, we’re Americans again.’ And it was just terrific.”

At the meeting in March, several people said that it was necessary to restore trust in public health institutions. But what, exactly, did that mean? Kirschner argued that it required more information, including more detailed accountings of all the ways public health interventions like vaccination could cause harm, and more detail on where the scientific literature falls short. “Denying information risks backfiring when risks that were hidden become known and trust in authorities craters,” he said during the hearing.

“I find that people are smarter than these public health people give them credit for,” he said during his call with Undark. There was a tendency in public health, he felt, to treat people like cattle. “The mindset of public health is, ‘They’re dummies, and we need to direct them and to what we think is in their interest,’” he said.

Others at the meeting pushed back against suggestions that public health workers and clinicians were not already providing detailed information to patients. “It’s not like Panhandle Health is against informed consent, or does not have that as part of the process” said Peggy Cuvala, a member of the board. Cuvala has personal experience with the issue: She spent more than three decades as a public health nurse and nurse practitioner with the Panhandle Health District. “I would never force anyone into vaccination,” she said in a phone interview.

Cuvala is well aware that vaccine side effects happen—one of her own children, she said, suffered an adverse reaction to a shot—but she’s also seen transformative benefits. For years, she had to fill out reports on cases of Haemophilus influenzae that had caused meningitis in young children, including one case in which an infant died. Then a vaccine arrived. “Within a year of that vaccine coming out, I didn’t have to do those reports anymore,” she told Undark.

Cuvala describes herself as feeling perplexed by the recent direction of the board. “I think protecting and promoting the health and well being of the residents in North Idaho is critical,” she wrote in an email. “This work should be directed by the board collectively without political bias.”

During the meeting, legal questions came up, too: What were the liability implications of drawing up a custom PHD vaccine safety document?

In a previous meeting, Fletcher had pushed for a document that just gave basic details on the duration and scope of the randomized controlled trials that common vaccines had been subjected to. Such information, he argued, would demonstrate how poorly vetted the shots were—and show how they could be dangerous, even fatal. After that, he said in an interview, it was the parent’s choice. “If some mom wants her kid to get it, fine, give it to him,” Fletcher said. The ultimate arbiter of who was correct would be the brutal process of natural selection: “Let Darwin figure it out.”

In the March meeting, the board voted against creating a subcommittee to explore how to draft the document. “It’s dead,” said Fletcher during a phone call in early May.

A matter of trust

The discussion around the informed consent measure, though, was not entirely gone. On a Saturday morning in early May, the board held a lengthy public planning session at a government building in Coeur d’Alene. During a visioning session, attendees put stickers on pieces of paper next to words describing opportunities for the district. At the bottom of the page, someone wrote, in large, all-caps: “TRUST.”

Kirschner spoke again at the meeting, urging the board to revive the measure. So did a handful of other attendees, including Ron Korn, a county commissioner.

In a short interview at the meeting, PHD spokesperson Katherine Hoyer expressed some uncertainty about what substantive differences, precisely, the measure would offer over what’s already taking place in clinics. “What they’re proposing is that we provide patients with information on medical practices and vaccines,” she said. “That is happening.”

Fletcher sees opportunities ahead. In July, the board unanimously reelected him as chair. And, he said, he has a new ally in the push for an informed consent policy. Jessica Jameson, one of the board members who opposed the measure, recently resigned. Fletcher described her successor, a naturopathic doctor who was appointed to the board last month, as aligned with the MAHA movement. That brings the total MAHA-aligned members, by his count, to four — securing a majority on the seven-member board. “My plan is unfolding just as I wanted,” he said during a call in late July.

During an earlier conversation, Fletcher had reflected on the strange position of RFK Jr., who is perched atop the Department of Health and Human Services, which is staffed by many of the people he spent his career opposing. “He has hundreds of thousands of employees; 99.99 percent of them think he’s full of shit,” Fletcher said. Fletcher, in some ways, has his own miniature version of that problem: An antagonist of institutional public health, overseeing a public health organization.

The precise informed consent measure, he acknowledged, may not come to pass. But the debate itself has merit, he said: “Even if we lose, whatever lose means, even if we don’t make any positive forward motion — you never know. Every time you talk about this, you maybe change someone’s sentiment. You maybe move things forward a little bit. Which is why I do it.”

Fletcher’s role is small. But, he suggested, added together, the cumulative efforts of local politicking could amount to a revolution. “Robert Kennedy needs as many people putting their oar in the water and stroking in the same direction,” Fletcher said. “He can’t do it alone. So if there are 10,000 Thomas Fletchers out there, all going in the same direction, then maybe we can have hope.”

Rajah Bose contributed reporting from Idaho.

This article was originally published on Undark. Read the original article.

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Five children see HIV viral loads vanish after taking antiretroviral drugs


The first widespread success in curing HIV may come from children, not adults.

An ARV tablet being held in Kisumu, Kenya, on April 24, 2025 Credit: Michel Lunaga/Getty

For years, Philip Goulder has been obsessed with a particularly captivating idea: In the hunt for an HIV cure, could children hold the answers?

Starting in the mid-2010s, the University of Oxford pediatrician and immunologist began working with scientists in the South African province of KwaZulu-Natal, with the aim of tracking several hundred children who had acquired HIV from their mothers, either during pregnancy, childbirth, or breastfeeding.

After putting the children on antiretroviral drugs early in their lives to control the virus, Goulder and his colleagues were keen to monitor their progress and adherence to standard antiretroviral treatment, which stops HIV from replicating. But over the following decade, something unusual happened. Five of the children stopped coming to the clinic to collect their drugs, and when the team eventually tracked them down many months later, they appeared to be in perfect health.

“Instead of their viral loads being through the roof, they were undetectable,” says Goulder. “And normally HIV rebounds within two or three weeks.”

In a study published last year, Goulder described how all five remained in remission, despite having not received regular antiretroviral medication for some time, and in one case, up to 17 months. In the decadeslong search for an HIV cure, this offered a tantalizing insight: that the first widespread success in curing HIV might not come in adults, but in children.

At the recent International AIDS Society conference held in Kigali, Rwanda, in mid-July, Alfredo Tagarro, a pediatrician at the Infanta Sofia University Hospital in Madrid, presented a new study showing that around 5 percent of HIV-infected children who receive antiretrovirals within the first six months of life ultimately suppress the HIV viral reservoir—the number of cells harboring the virus’s genetic material—to negligible levels. “Children have special immunological features which makes it more likely that we will develop an HIV cure for them before other populations,” says Tagarro.

His thoughts were echoed by another doctor, Mark Cotton, who directs the children’s infectious diseases clinical research unit at the University of Stellenbosch, Cape Town.

“Kids have a much more dynamic immune system,” says Cotton. “They also don’t have any additional issues like high blood pressure or kidney problems. It makes them a better target, initially, for a cure.”

According to Tagarro, children with HIV have long been “left behind” in the race to find a treatment that can put HIV-positive individuals permanently into remission. Since 2007, 10 adults are thought to have been cured, having received stem cell transplants to treat life-threatening blood cancer, a procedure which ended up eliminating the virus. Yet with such procedures being both complex and highly risky—other patients have died in the aftermath of similar attempts—it is not considered a viable strategy for specifically targeting HIV.

Instead, like Goulder, pediatricians have increasingly noticed that after starting antiretroviral treatment early in life, a small subpopulation of children then seem able to suppress HIV for months, years, and perhaps even permanently with their immune system alone. This realization initially began with certain isolated case studies: the “Mississippi baby” who controlled the virus for more than two years without medication, and a South African child who was considered potentially cured having kept the virus in remission for more than a decade. Cotton says he suspects that between 10 and 20 percent of all HIV-infected children would be capable of controlling the virus for a significant period of time, beyond the typical two to three weeks, after stopping antiretrovirals.

Goulder is now launching a new study to try and examine this phenomenon in more detail, taking 19 children in South Africa who have suppressed HIV to negligible levels on antiretrovirals, stopping the drugs, and seeing how many can prevent the virus from rebounding, with the aim of understanding why. To date, he says that six of them have been able to control the virus without any drugs for more than 18 months. Based on what he’s seen so far, he has a number of ideas about what could be happening. In particular, it appears that boys are more likely to better control the virus due to a quirk of gender biology to do with the innate immune system, the body’s first-line defense against pathogens.

“The female innate immune system both in utero and in childhood is much more aggressive than the male equivalent when it encounters and senses viruses like HIV,” says Goulder. “Usually that’s a good thing, but because HIV infects activated immune cells, it actually seems to make girls more vulnerable to being infected.”

In addition, Goulder notes that because female fetuses share the same innate immune system as their mothers, the virus transmitted to them is an HIV strain that has become resistant to the female innate immune response.

There could also be other explanations for the long-lasting suppression seen in some children. In some cases, Goulder has observed that the transmitted strain of HIV has been weakened through needing to undergo changes to circumvent the mother’s adaptive immune response, the part of the immune system which learns to target specific viruses and other pathogens. He has also noted that male infants experience particularly large surges of testosterone in the first six months of life—a period known as “mini-puberty”—which can enhance their immune system in various ways that help them fight the virus.

Such revelations are particularly tantalizing as HIV researchers are starting to get access to a far more potent toolbox of therapeutics. Leading the way are so-called bNAbs, or broadly neutralizing antibodies, which have the ability to recognize and fight many different strains of HIV, as well as stimulating the immune system to destroy cells where HIV is hiding. There are also a growing number of therapeutic vaccines in development that can train the immune system’s T cells to target and destroy HIV reservoirs. Children tend to respond to various vaccines better than adults, and Goulder says that if some children are already proving relatively adept at controlling the virus on the back of standard antiretrovirals, these additional therapeutics could give them the additional assistance they need to eradicate HIV altogether.

In the coming years, this is set to be tested in several clinical trials. Cotton is leading the most ambitious attempt, which will see HIV-infected children receive a combination of antiretroviral therapy, three bNAbs, and a vaccine developed by the University of Oxford, while in a separate trial, Goulder is examining the potential of a different bNAb together with antiretrovirals to see whether it can help more children achieve long-term remission.

“We think that adding the effects of these broadly neutralizing antibodies to antiretrovirals will help us chip away at what is needed to achieve a cure,” says Goulder. “It’s a little bit like with leukemia, where treatments have steadily improved, and now the outlook for most children affected is incredibly good. Realistically in most cases, curing HIV probably requires a few hits from different angles, impacting the way that the virus can grow, and tackling it with different immune responses at the same time to essentially force it into a cul-de-sac that it can’t escape from.”

Children are also being viewed as the ideal target population for an even more ambitious experimental treatment, a one-time gene therapy that delivers instructions directing the body’s own muscle cells to produce a continuous stream of bNAbs, without the need for repeated infusions. Maurico Martins, an associate professor at the University of Florida, who is pioneering this new approach, feels that it could represent a particularly practical strategy for low-income countries where HIV transmission to children is particularly rife, and mothers often struggle to keep their children on repeated medication.

“In regions like Uganda or parts of South Africa where this is very prevalent, you could also give this therapy to a baby right after birth as a preventative measure, protecting the newborn child against acquisition of HIV through breastfeeding and maybe even through sexual intercourse later in life,” says Martins.

While Martins also hopes that gene therapy could benefit HIV-infected adults in future, he feels it has more of a chance of initially succeeding in children because their nascent immune systems are less likely to launch what he calls an anti-drug response that can destroy the therapeutic bNAbs.

“It’s very difficult for most antibodies to recognize the HIV envelope protein because it’s buried deep within a sugar coat,” says Martins. “To overcome that, these bNAbs carry a lot of mutations and extensions to their arms which allow them to penetrate that sugar coat. But the problem then is that they’re often viewed by your own immune system as foreign, and it starts making these anti-bNAb antibodies.”

But when Martins tested the therapy in newborn rhesus macaques, it was far more effective. “We found that the first few days or two weeks after birth comprised a sort of sweet spot for this gene therapy,” he says. “And that’s why this could really work very well in treating and preventing pediatric HIV infections.”

Like many HIV scientists, Martins has run into recent funding challenges, with a previous commitment from the National Institutes of Health to support a clinical trial of the novel therapy in HIV-infected children being withdrawn. However, he is hoping that the trial will still go ahead. “We’re now talking with the Gates Foundation to see whether they can sponsor it,” he says.

While children still comprise the minority of overall HIV infections, being able to cure them may yield further insights that help with the wider goal of an overall curative therapy.

“We can learn a lot from them because they are different,” says Goulder. “I think we can learn how to achieve a cure in kids if we continue along this pathway, and from there, that will have applications in adults as well.”

This story originally appeared on wired.com.

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China claims Nvidia built backdoor into H20 chip designed for Chinese market

The CAC did not specify which experts had found a back door in Nvidia’s products or whether any tests in China had uncovered the same results. Nvidia did not immediately respond to a request for comment.

Lawmakers in Washington have expressed concern about chip smuggling and introduced a bill that would require chipmakers such as Nvidia to embed location tracking into export-controlled hardware.

Beijing has issued informal guidance to major Chinese tech groups to increase purchases of domestic AI chips in order to reduce reliance on Nvidia and support the evolution of a rival domestic chip ecosystem.

Chinese tech giant Huawei and smaller groups including Biren and Cambricon have benefited from the push to localize chip supply chains.

Nvidia said it would take nine months from restarting manufacturing to shipping the H20 to clients. Industry insiders said there was considerable uncertainty among Chinese customers over whether they would be able to take delivery of any orders if the US reversed its decision to allow its sale.

The Trump administration has faced heavy criticism, including from security experts and former officials, who argue that the H20 sales would accelerate Chinese AI development and threaten US national security.

“There are strong factions on both sides of the Pacific that don’t like the idea of renewing H20 sales,” said Triolo. “In the US, the opposition is clear, but also in China voices are saying that it will slow transition to the alternative ecosystem.”

© 2025 The Financial Times Ltd. All rights reserved. Not to be redistributed, copied, or modified in any way.

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VPN use soars in UK after age-verification laws go into effect

Also on Friday, the Windscribe VPN service posted a screenshot on X claiming to show a spike in new subscribers. The makers of the AdGuard VPN claimed that they have seen a 2.5X increase in install rates from the UK since Friday.

Nord Security, the company behind the NordVPN app, says it has seen a “1,000 percent increase in purchases” of subscriptions from the UK since the day before the new laws went into effect. “Such spikes in demand for VPNs are not unusual,” Laura Tyrylyte, Nord Security’s head of public relations, tells WIRED. She adds in a statement that “whenever a government announces an increase in surveillance, Internet restrictions, or other types of constraints, people turn to privacy tools.”

People living under repressive governments that impose extensive Internet censorship—like China, Russia, and Iran—have long relied on circumvention tools like VPNs and other technologies to maintain anonymity and access blocked content. But as countries that have long claimed to champion the open Internet and access to information, like the United States, begin considering or adopting age verification laws meant to protect children, the boundaries for protecting digital rights online quickly become extremely murky.

“There will be a large number of people who are using circumvention tech for a range of reasons” to get around age verification laws, the ACLU’s Kahn Gillmor says. “So then as a government you’re in a situation where either you’re obliging the websites to do this on everyone globally, that way legal jurisdiction isn’t what matters, or you’re encouraging people to use workarounds—which then ultimately puts you in the position of being opposed to censorship-circumvention tools.”

This story originally appeared on wired.com.

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EPA plans to ignore science, stop regulating greenhouse gases

It derives from a 2007 Supreme Court ruling that named greenhouse gases as “air pollutants,” giving the EPA the mandate to regulate them under the Clean Air Act.

Critics of the rule say that the Clean Air Act was fashioned to manage localized emissions, not those responsible for global climate change.

A rollback would automatically weaken the greenhouse gas emissions standards for cars and heavy-duty vehicles. Manufacturers such as Daimler and Volvo Cars have previously opposed the EPA’s efforts to tighten emission standards, while organized labour groups such as the American Trucking Association said they “put the trucking industry on a path to economic ruin.”

However, Katherine García, director of Sierra Club’s Clean Transportation for All Campaign, said that the ruling would be “disastrous for curbing toxic truck pollution, especially in frontline communities disproportionately burdened by diesel exhaust.”

Energy experts said the move could also stall progress on developing clean energy sources such as nuclear power.

“Bipartisan support for nuclear largely rests on the fact that it doesn’t have carbon emissions,” said Ken Irvin, a partner in Sidley Austin’s global energy and infrastructure practice. “If carbon stops being considered to endanger human welfare, that might take away momentum from nuclear.”

The proposed rule from the EPA will go through a public comment period and inter-agency review. It is likely to face legal challenges from environmental activists.

© 2025 The Financial Times Ltd. All rights reserved. Not to be redistributed, copied, or modified in any way.

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trump-promised-a-drilling-boom,-but-us-energy-industry-hasn’t-been-interested

Trump promised a drilling boom, but US energy industry hasn’t been interested


Exec: “Liberation Day chaos and tariff antics have harmed the domestic energy industry.”

“We will drill, baby, drill,” President Donald Trump declared at his inauguration on January 20. Echoing the slogan that exemplified his energy policies during the campaign, he made his message clear: more oil and gas, lower prices, greater exports.

Six months into Trump’s second term, his administration has little to show on that score. Output is ticking up, but slower than it did under the Biden administration. Pump prices for gasoline have bobbed around where they were in inauguration week. And exports of crude oil in the four months through April trailed those in the same period last year.

The White House is discovering, perhaps the hard way, that energy markets aren’t easily managed from the Oval Office—even as it moves to roll back regulations on the oil and gas sector, offers up more public lands for drilling at reduced royalty rates, and axes Biden-era incentives for wind and solar.

“The industry is going to do what the industry is going to do,” said Jenny Rowland-Shea, director for public lands at the Center for American Progress, a progressive policy think tank.

That’s because the price of oil, the world’s most-traded commodity, is more responsive to global demand and supply dynamics than to domestic policy and posturing.

The market is flush with supplies at the moment, as the Saudi Arabia-led cartel of oil-producing nations known as OPEC+ allows more barrels to flow while China, the world’s top oil consumer, curbs its consumption. Within the US, a boom in energy demand driven by rapid electrification and AI-serving data centers is boosting power costs for homes and businesses, yet fossil fuel producers are not rushing to ramp up drilling.

There is one key indicator of drilling levels that the industry has watched closely for more than 80 years: a weekly census of active oil and gas rigs published by Baker Hughes. When Trump came into office January 20, the US rig count was 580. Last week, the most recent figure, it was down to 542—hovering just above a four-year low reached earlier in the month.

The most glaring factor behind this stagnant rig count is the current level of crude oil prices. Take the US benchmark grade: West Texas Intermediate crude. Its prices were near $66 a barrel on July 28, after hitting a four-year low of $62 in May. The break-even level for drilling new wells is somewhere close to $60 per barrel, according to oil and gas experts.

That’s before you account for the fallout of elevated tariffs on steel and other imports for the many companies that get their pipes and drilling equipment from overseas, said Robert Rapier, editor-in-chief of Shale Magazine, who has two decades of experience as a chemical engineer.

The Federal Reserve Bank of Dallas’ quarterly survey of over 130 oil and gas producers based in Texas, Louisiana, and New Mexico, conducted in June, suggests the industry’s outlook is pessimistic. Nearly half of the 38 firms that responded to this question saw their firms drilling fewer wells this year than they had earlier expected.

Survey participants could also submit comments. One executive from an exploration and production (E&P) company said, “It’s hard to imagine how much worse policies and DC rhetoric could have been for US E&P companies.” Another executive said, “The Liberation Day chaos and tariff antics have harmed the domestic energy industry. Drill, baby, drill will not happen with this level of volatility.”

Roughly one in three survey respondents chalked up the expectations for fewer wells to higher tariffs on steel imports. And three in four said tariffs raised the cost of drilling and completing new wells.

“They’re getting more places to drill and they’re getting some lower royalties, but they’re also getting these tariffs that they don’t want,” Rapier said. “And the bottom line is their profits are going to suffer.”

Earlier this month, ExxonMobil estimated that its profit in the April-June quarter will be roughly $1.5 billion lower than in the previous three months because of weaker oil and gas prices. And over in Europe, BP, Shell, and TotalEnergies issued similar warnings to investors about hits to their respective profits.

These warnings come even as Trump has installed friendly faces to regulate the oil and gas sector, including at the Department of Energy, the Environmental Protection Agency, and the Department of the Interior, the latter of which manages federal lands and is gearing up to auction more oil and gas leases on those lands.

“There’s a lot of enthusiasm for a window of opportunity to make investments. But there’s also a lot of caution about wanting to make sure that if there’s regulatory reforms, they’re going to stick,” said Kevin Book, managing director of research at ClearView Energy Partners, which produces analyses for energy companies and investors.

The recently enacted One Big Beautiful Bill Act contains provisions requiring four onshore and two offshore lease sales every year, lowering the minimum royalty rate to 12.5 percent from 16.67 percent, and bringing back speculative leasing—when lands that don’t invite enough bids are leased for less money—that was stopped in 2022.

“Pro-energy policies play a critical role in strengthening domestic production,” said a spokesperson for the American Petroleum Institute, the top US oil and gas industry group. “The new tax legislation unlocks opportunities for safe, responsible development in critical resource basins to deliver the affordable, reliable fuel Americans rely on.”

Because about half of the federal royalties end up with the states and localities where the drilling occurs, “budgets in these oil and gas communities are going to be hit hard,” Rowland-Shea of American Progress said. Meanwhile, she said, drilling on public lands can pollute the air, raise noise levels, cause spills or leaks, and restrict movement for both people and wildlife.

Earlier this year, Congress killed an EPA rule finalized in November that would have charged oil and gas companies for flaring excess methane from their operations.

“Folks in the Trump camp have long said that the Biden administration was killing drilling by enforcing these regulations on speculative leasing and reining in methane pollution,” said Rowland-Shea. “And yet under Biden, we saw the highest production of oil and gas in history.”

In fact, the top three fossil fuel producers collectively earned less during Trump’s first term than they did in either of President Barack Obama’s terms or under President Joe Biden. “It’s an irony that when Democrats are in there and they’re putting in policies to shift away from oil and gas, which causes the price to go up, that is more profitable for the oil and gas industry,” said Rapier.

That doesn’t mean, of course, that the Trump administration’s actions won’t have long-lasting climate implications. Even though six months may be a significant amount of time in political accounting, investment decisions in the energy sector are made over longer horizons, ClearView’s Book said. As long as the planned lease sales take place, oil companies can snap up and sit on public lands until they see more favorable conditions for drilling.

It’s an irony that when Democrats are in there and they’re putting in policies to shift away from oil and gas, which causes the price to go up, that is more profitable for the oil and gas industry.

What could pad the demand for oil and gas is how the One Big Beautiful Bill Act will withdraw or dilute the Inflation Reduction Act’s tax incentives and subsidies for renewable energy sources. “With the kneecapping of wind and solar, that’s going to put a lot more pressure on fossil fuels to fill that gap,” Rowland-Shea said.

However, the economics of solar and wind are increasingly too attractive to ignore. With electricity demand exceeding expectations, Book said, “any president looking ahead at end-user prices and power supply might revisit or take a flexible position if they find themselves facing shortage.”

A recent United Nations report found that “solar and wind are now almost always the least expensive—and the fastest—option for new electricity generation.” That is why Texas, deemed the oil capital of the world, produces more wind power than any other state and also led the nation in new solar capacity in the last two years.

Renewables like wind and solar, said Rowland-Shea, are “a truly abundant and American source of energy.”

This story originally appeared on Inside Climate News.

Photo of Inside Climate News

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fermented-meat-with-a-side-of-maggots:-a-new-look-at-the-neanderthal-diet

Fermented meat with a side of maggots: A new look at the Neanderthal diet

Traditionally, Indigenous peoples almost universally viewed thoroughly putrefied, maggot-infested animal foods as highly desirable fare, not starvation rations. In fact, many such peoples routinely and often intentionally allowed animal foods to decompose to the point where they were crawling with maggots, in some cases even beginning to liquefy.

This rotting food would inevitably emit a stench so overpowering that early European explorers, fur trappers, and missionaries were sickened by it. Yet Indigenous peoples viewed such foods as good to eat, even a delicacy. When asked how they could tolerate the nauseating stench, they simply responded, “We don’t eat the smell.”

Neanderthals’ cultural practices, similar to those of Indigenous peoples, might be the answer to the mystery of their high δ¹⁵N values. Ancient hominins were butchering, storing, preserving, cooking, and cultivating a variety of items. All these practices enriched their paleo menu with foods in forms that nonhominin carnivores do not consume. Research shows that δ¹⁵N values are higher for cooked foods, putrid muscle tissue from terrestrial and aquatic species, and, with our study, for fly larvae feeding on decaying tissue.

The high δ¹⁵N values of maggots associated with putrid animal foods help explain how Neanderthals could have included plenty of other nutritious foods beyond only meat while still registering δ¹⁵N values we’re used to seeing in hypercarnivores.

We suspect the high δ¹⁵N values seen in Neanderthals reflect routine consumption of fatty animal tissues and fermented stomach contents, much of it in a semi-putrid or putrid state, together with the inevitable bonus of both living and dead ¹⁵N-enriched maggots.

What still isn’t known

Fly larvae are a fat-rich, nutrient-dense, ubiquitous, and easily procured insect resource, and both Neanderthals and early Homo sapiens, much like recent foragers, would have benefited from taking full advantage of them. But we cannot say that maggots alone explain why Neanderthals have such high δ¹⁵N values in their remains.

Several questions about this ancient diet remain unanswered. How many maggots would someone need to consume to account for an increase in δ¹⁵N values above the expected values due to meat eating alone? How do the nutritional benefits of consuming maggots change the longer a food item is stored? More experimental studies on changes in δ¹⁵N values of foods processed, stored, and cooked following Indigenous traditional practices can help us better understand the dietary practices of our ancient relatives.

Melanie Beasley is assistant professor of anthropology at Purdue University.

This article is republished from The Conversation under a Creative Commons license. Read the original article.

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