Science
Trump Picks Ex-Congressman to Manage U.S. Nuclear Arsenal
President-elect Donald J. Trump has picked Brandon Williams, a former Navy officer and one-term congressman, to become the keeper of the nation’s arsenal of thousands of nuclear bombs and warheads.
Mr. Trump’s selection is a shift from a tradition in which the people who served as administrator of the National Nuclear Security Administration typically had deep technical roots or experience in the nation’s atomic complex. What’s unknown publicly is the extent of Mr. Williams’ experience in the knotty intricacies of how the weapons work and how they are kept reliable for decades without ever being ignited.
Terry C. Wallace Jr., a former director of the Los Alamos weapons laboratory in New Mexico, expressed surprise at Mr. Trump’s pick.
Dr. Wallace said he had “never met him or had a meeting” with Mr. Williams and characterized him as having “very limited experience” with the N.N.S.A.’s missions, based on his own decades of work in and around the nation’s atomic complex.
Hans M. Kristensen, the director of the Nuclear Information Project at the Federation of American Scientists, said Mr. Williams “will be facing an incredibly complex, technical job.”
Mr. Williams did not return calls for comment on his selection by Mr. Trump or his credentials.
The credentials and credibility of whoever becomes N.N.S.A.’s new leader may face close scrutiny because advisers to Mr. Trump have suggested that the incoming administration may propose a restart to the nation’s explosive testing of nuclear arms. That step, daunting both technically and politically, would end U.S. adherence to a global test ban that sought to end decades of costly and destabilizing arms races.
From 2023 to early this year, Mr. Williams, a Republican, represented New York’s 22nd Congressional District, an upstate area that includes the cities of Syracuse and Utica. He was defeated by a Democrat in the November election.
Mr. Williams joined the U.S. Navy in 1991 and served as an officer on the U.S.S. Georgia, a nuclear submarine, before leaving the service as a lieutenant in 1996.
In his congressional biography, Mr. Williams said he made a successful transition during his Navy career into nuclear engineer training, calling it “a very steep learning curve” that he met “against significant odds.” The program is widely considered one of the U.S. military’s most demanding.
Mr. Trump announced his choice of Mr. Williams as the nation’s nuclear weapons czar in social media posts on Thursday morning, calling him “a successful businessman and Veteran of the U.S. Navy, where he served as a Nuclear Submarine Officer, and Strategic Missile Officer.”
According to his congressional biography, Mr. Williams founded “a software company that now helps large industrial manufacturers modernize their production plants, secure their critical infrastructure from cyberattacks, and paves the way for reduced emissions through advances in artificial intelligence.”
Chris Wright, Mr. Trump’s nominee for secretary of energy, the cabinet-level post that oversees the N.N.S.A., called Mr. Williams “a smart, passionate guy” who wants to “defend our country and make things better,” according to an interview on Wednesday with the website Exchange Monitor.
A lengthy 2022 profile of Mr. Williams described him as a multimillionaire who starts each morning by reading a section of the Bible. After high school, it said, Mr. Williams went to Baylor University, a private Christian school in Waco, Texas, and then transferred to Pepperdine University in Malibu, Calif.
His congressional biography says he earned a bachelors from Pepperdine in liberal arts, and later an MBA from the Wharton School, a contrast with the advanced degrees in physics or engineering that typically dot the résumés of weaponeers who end up in senior positions of the nation’s atomic complex.
The outgoing administrator of the National Nuclear Security Administration, Jill Hruby, offers a striking contrast with Mr. Williams in terms of technical background and nuclear experience. Before her 2021 nomination to the post, she had a 34-year career at Sandia National Laboratories, retiring in 2017 as director. By training, she is a mechanical engineer.
Sandia is one of the nation’s three nuclear weapons labs, with its main branch located in Albuquerque. It is responsible for the nonnuclear parts of the nation’s arsenal of atomic bombs and warheads.
Other N.N.S.A. administrators have had backgrounds in national security, nuclear operations, the military or scientific fields related to nuclear technology. The first was an Air Force general and a former deputy director of the C.I.A.
The overall responsibilities of the N.N.S.A. include designing, making and maintaining the safety, security and reliability of the nation’s nuclear arms; providing nuclear plants to the Navy; and promoting global atomic safety and nonproliferation. In Nevada, the agency runs a sprawling base larger than the state of Rhode Island, where the United States in the latter years of the Cold War tested its weapons in underground explosions.
Dr. Wallace, the former Los Alamos director, said he had tracked Mr. Trump’s search for an agency leader and found that “any candidate will be making a pitch for resumption.” He added, “That more or less disqualifies any recent director of any nuclear weapons lab.”
Many experts see a restart as unnecessary given the depth and breadth of the nation’s nonexplosive testing program, which the N.N.S.A. runs at an annual cost of roughly $10 billion. Experts argue that the program’s decades of analyses have led to deeper understanding of nuclear arms and greater confidence in weapon reliability than during the explosive era.
Dr. Wallace said Mr. Trump was aided in his hunt for a nuclear czar by Robert C. O’Brien, his national security adviser from 2019 to 2021. Last year in Foreign Affairs magazine, Mr. O’Brien, a lawyer, argued that Washington “must test new nuclear weapons for reliability and safety in the real world.” He added that the freshly tested arsenal would be a deterrent to China and Russia.
Republicans have long criticized the test ban and urged a testing restart. President Bill Clinton, a Democrat, signed the accord in 1996. In 1999, however, he suffered a crushing defeat when the Senate refused to ratify the test ban treaty.
In spite of the treaty’s defeat, successive administrations have informally abided the terms of the test ban. That position began to come under fire during Mr. Trump’s first administration.
In 2018, the Defense Department declared that “the United States must remain ready to resume nuclear testing.” John R. Bolton, Mr. Trump’s national security adviser from 2018 to 2019, reportedly argued for a restart but made little headway.
In 2020, when Mr. O’Brien was the national security adviser, the Trump administration reportedly discussed whether to conduct nuclear test explosions in a meeting with national security agencies.
Opponents of a restart see the nonnuclear tests as more than sufficient to ensure arsenal reliability. “We have more confidence today than when we stopped explosive testing,” Victor H. Reis, the program’s architect, said in an interview.
Siegfried S. Hecker, a former Los Alamos director, argued that a restart would probably start a chain reaction of testing among the world’s atomic powers and perhaps among the so-called threshold states. Like Iran, they’re considered close to being able to build a bomb.
Dr. Hecker noted that during the Cold War, China conducted 45 test explosions, France 210, Russia 715 and the United States 1,030. He said that Beijing, which in recent years has rebuilt its base for nuclear tests, had a major incentive to design and explosively test a new generation of nuclear arms. He argued that the arms could make its expanding missile force more lethal.
“China,” Dr. Hecker added, “has much more to gain from resumed testing than we do.”
Science
Contributor: With high deductibles, even the insured are functionally uninsured
I recently saw a patient complaining of shortness of breath and a persistent cough. Worried he was developing pneumonia, I ordered a chest X-ray — a standard diagnostic tool. He refused. He hadn’t met his $3,000 deductible yet, and so his insurance would have required him to pay much or all of the cost for that scan. He assured me he would call if he got worse.
For him, the X-ray wasn’t a medical necessity, but it would have been a financial shock he couldn’t absorb. He chose to gamble on a cough, and five days later, he lost — ending up in the ICU with bilateral pneumonia. He survived, but the cost of his “savings” was a nearly fatal hospital stay and a bill that will quite likely bankrupt him. He is lucky he won’t be one of the 55,000 Americans to die from pneumonia each year.
As a physician associate in primary care, I serve as a frontline witness to this failure of the American approach to insurance. Medical professionals are taught that the barrier to health is biology: bacteria, viruses, genetics. But increasingly, the barrier is a policy framework that pressures insured Americans to gamble with their lives. High-deductible health plans seem affordable because their monthly premiums are lower than other plans’, but they create perverse incentives by discouraging patients from seeking and accepting diagnostics and treatments — sometimes turning minor, treatable issues into expensive, life-threatening emergencies. My patient’s gamble with his lungs is a microcosm of the much larger gamble we are taking with the American public.
The economic theory underpinning these high deductibles is known as “skin in the game.” The idea is that if patients are responsible for the first few thousand dollars of their care, they will become savvy consumers, shopping around for the best value and driving down healthcare costs.
But this logic collapses in the exam room. Healthcare is not a consumer good like a television or a used car. My patient was not in a position to “shop around” for a cheaper X-ray, nor was he qualified to determine if his cough was benign or deadly. The “skin in the game” theory assumes a level of medical literacy and market transparency that simply doesn’t exist in a moment of crisis. You can compare the specs of two SUVs; you cannot “shop around” for a life-saving diagnostic while gasping for air.
A 2025 poll from the Kaiser Family Foundation points to this reality, finding that up to 38% of insured American adults say they skipped or postponed necessary healthcare or medications in the past 12 months because of cost. In the same poll, 42% of those who skipped care admitted their health problem worsened as a result.
This self-inflicted public health crisis is set to deteriorate further. The Congressional Budget Office estimates roughly 15 million people will lose health coverage and become uninsured by 2034 because of Medicaid and Affordable Care Act marketplace cuts. That is without mentioning the millions more who will see their monthly premiums more than double if premium tax credits are allowed to expire. If that happens, not only will millions become uninsured but also millions more will downgrade to “bronze” plans with huge deductibles just to keep their premiums affordable. We are about to flood the system with “insured but functionally uninsured” patients.
I see the human cost of this “functional uninsurance” every week. These are patients who technically have coverage but are terrified to use it because their deductibles are so large they may exceed the individuals’ available cash or credit — or even their net worth. This creates a dangerous paradox: Americans are paying hundreds of dollars a month for a card in their wallet they cannot afford to use. They skip the annual physical, ignore the suspicious mole and ration their insulin — all while technically insured. By the time they arrive at my clinic, their disease has often progressed to a catastrophic event, from what could have been a cheap fix.
Federal spending on healthcare should not be considered charity; it is an investment in our collective future. We cannot expect our children to reach their full potential or our workforce to remain productive if basic healthcare needs are treated as a luxury. Inaction by Congress and the current administration to solve this crisis is legislative malpractice.
In medicine, we are trained to treat the underlying disease, not just the symptoms. The skipped visits and ignored prescriptions are merely symptoms; the disease is a policy framework that views healthcare as a commodity rather than a fundamental necessity. If we allow these cuts to proceed, we are ensuring that the American workforce becomes sicker, our hospitals more overwhelmed and our economy less resilient. We are walking willingly into a public health crisis that is entirely preventable.
Joseph Pollino is a primary care physician associate in Nevada.
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Ideas expressed in the piece
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High-deductible health plans create a barrier to necessary medical care, with patients avoiding diagnostics and treatments due to out-of-pocket cost concerns[1]. Research shows that 38% of insured American adults skipped or postponed necessary healthcare or medications in the past 12 months because of cost, with 42% reporting their health worsened as a result[1].
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The economic theory of “skin in the game”—which assumes patients will shop around for better healthcare values if they have financial responsibility—fails in medical practice because patients lack the medical literacy to make informed decisions in moments of crisis and cannot realistically compare pricing for emergency or diagnostic services[1].
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Rising deductibles are pushing enrollees toward bronze plans with deductibles averaging $7,476 in 2026, up from the average silver plan deductible of $5,304[1][4]. In California’s Covered California program, bronze plan enrollment has surged to more than one-third of new enrollees in 2026, compared to typically one in five[1].
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Expiring federal premium tax credits will more than double out-of-pocket premiums for ACA marketplace enrollees in 2026, creating an expected 75% increase in average out-of-pocket premium payments[5]. This will force millions to either drop coverage or downgrade to bronze plans with massive deductibles, creating a population of “insured but functionally uninsured” people[1].
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High-deductible plans pose particular dangers for patients with chronic conditions, with studies showing adults with diabetes involuntarily switched to high-deductible plans face 11% higher risk of hospitalization for heart attacks, 15% higher risk for strokes, and more than double the likelihood of blindness or end-stage kidney disease[4].
Different views on the topic
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Expanding access to health savings accounts paired with bronze and catastrophic plans offers tax advantages that allow higher-income individuals to set aside tax-deductible contributions for qualified medical expenses, potentially offsetting higher out-of-pocket costs through strategic planning[3].
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Employers and insurers emphasize that offering multiple plan options with varying deductibles and premiums enables employees to select plans matching their individual needs and healthcare usage patterns, allowing those who rarely use healthcare to save money through lower premiums[2]. Large employers increasingly offer three or more medical plan choices, with the expectation that employees choosing the right plan can unlock savings[2].
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The expansion of catastrophic plans with streamlined enrollment processes and automatic display on HealthCare.gov is intended to make affordable coverage more accessible for certain income groups, particularly those above 400% of federal poverty level who lose subsidies[3].
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Rising healthcare costs, including specialty drugs and new high-cost cell and gene therapies, are significant drivers requiring premium increases regardless of plan design[5]. Some insurers are managing affordability by discontinuing costly coverage—such as GLP-1 weight-loss medications—to reduce premium rate increases for broader plan members[5].
Science
Trump administration slashes number of diseases U.S. children will be regularly vaccinated against
The U.S. Department of Health and Human Services announced sweeping changes to the pediatric vaccine schedule on Monday, sharply cutting the number of diseases U.S. children will be regularly immunized against.
Under the new guidelines, the U.S. still recommends that all children be vaccinated against measles, mumps, rubella, polio, pertussis, tetanus, diphtheria, Haemophilus influenzae type B (Hib), pneumococcal disease, human papillomavirus (HPV) and varicella, better known as chickenpox.
Vaccines for all other diseases will now fall into one of two categories: recommended only for specific high-risk groups, or available through “shared clinical decision-making” — the administration’s preferred term for “optional.”
These include immunizations for hepatitis A and B, rotavirus, respiratory syncytial virus (RSV), bacterial meningitis, influenza and COVID-19. All these shots were previously recommended for all children.
Insurance companies will still be required to fully cover all childhood vaccines on the CDC schedule, including those now designated as optional, according to the Department of Health and Human Services.
Health Secretary Robert F. Kennedy Jr., a longtime vaccine critic, said in a statement that the new schedule “protects children, respects families, and rebuilds trust in public health.”
But pediatricians and public health officials widely condemned the shift, saying that it would lead to more uncertainty for patients and a resurgence of diseases that had been under control.
“The decision to weaken the childhood immunization schedule is misguided and dangerous,” said Dr. René Bravo, a pediatrician and president of the California Medical Assn. “Today’s decision undermines decades of evidence-based public health policy and sends a deeply confusing message to families at a time when vaccine confidence is already under strain.”
The American Academy of Pediatrics condemned the changes as “dangerous and unnecessary,” and said that it will continue to publish its own schedule of recommended immunizations. In September, California, Oregon, Washington and Hawaii announced that those four states would follow an independent immunization schedule based on recommendations from the AAP and other medical groups.
The federal changes have been anticipated since December, when President Trump signed a presidential memorandum directing the health department to update the pediatric vaccine schedule “to align with such scientific evidence and best practices from peer, developed countries.”
The new U.S. vaccination guidelines are much closer to those of Denmark, which routinely vaccinates its children against only 10 diseases.
As doctors and public health experts have pointed out, Denmark also has a robust system of government-funded universal healthcare, a smaller and more homogenous population, and a different disease burden.
“The vaccines that are recommended in any particular country reflect the diseases that are prevalent in that country,” said Dr. Kelly Gebo, dean of the Milken Institute School of Public Health at George Washington University. “Just because one country has a vaccine schedule that is perfectly reasonable for that country, it may not be at all reasonable” elsewhere.
Almost every pregnant woman in Denmark is screened for hepatitis B, for example. In the U.S., less than 85% of pregnant women are screened for the disease.
Instead, the U.S. has relied on universal vaccination to protect children whose mothers don’t receive adequate care during pregnancy. Hepatitis B has been nearly eliminated in the U.S. since the vaccine was introduced in 1991. Last month, a panel of Kennedy appointees voted to drop the CDC’s decades-old recommendation that all newborns be vaccinated against the disease at birth.
“Viruses and bacteria that were under control are being set free on our most vulnerable,” said Dr. James Alwine, a virologist and member of the nonprofit advocacy group Defend Public Health. “It may take one or two years for the tragic consequences to become clear, but this is like asking farmers in North Dakota to grow pineapples. It won’t work and can’t end well.”
Science
For Oprah Winfrey, a croissant is now just a croissant — not a struggle
Yes, Oprah Winfrey has discussed her weight loss and weight gain and weight in general before — many, many times before. The difference this time around, she says, is how little food noise there is in her daily life, and how little shame. It’s so quiet, in fact, that she can eat a whole croissant and simply acknowledge she had breakfast.
“Food noise,” for those who don’t experience it, is a virtually nonstop mental conversation about food that, according to Tufts Medicine, rarely shuts up and instead drives a person “to eat when they’re not hungry, obsess over meals and feel shame or guilt about their eating habits.”
“This type of obsessive food-related thinking can override hunger cues and lead to patterns of overeating, undereating or emotional eating — especially for people who are overweight,” Tufts said.
Winfrey told People in an exclusive interview published Tuesday that in the past she would have been thinking, “‘How many calories in that croissant? How long is it going to take me to work it off? If I have the croissant, I won’t be able to have dinner.’ I’d still be thinking about that damn croissant!”
What has changed is her acceptance 2½ years ago that she has a disease, obesity, and that this time around there was something not called “willpower” to help her manage it.
The talk show host has been using Mounjaro, one of the GLP-1 drugs, since 2023. The weight-loss version of Mounjaro is Zepbound, like Wegovy is the weight-loss version of Ozempic. Trulicity and Victroza are also GLP-1s, and a pill version of Wegovy was just approved by the FDA.
When she started using the injectable, Winfrey told People she welcomed the arrival of a tool to help her get away from the yo-yo path she’d been on for decades. After understanding the science behind it, she said, she was “absolutely done with the shaming from other people and particularly myself” after so many years of weathering public criticism about her weight.
“I have been blamed and shamed,” she said elsewhere in that 2023 interview, “and I blamed and shamed myself.”
Now, on the eve of 2026, Winfrey says her mental shift is complete. “I came to understand that overeating doesn’t cause obesity. Obesity causes overeating,” she told the outlet. “And that’s the most mind-blowing, freeing thing I’ve experienced as an adult.”
She isn’t even sharing her current weight with the public.
Winfrey did take a break from the medication early in 2024, she said, and started to regain weight despite continuing to work out and eat healthy foods. So for Winfrey the obesity prescription will be renewed for a lifetime. C’est la vie seems to be her attitude.
“I’m not constantly punishing myself,” she said. “I hardly recognize the woman I’ve become. But she’s a happy woman.”
Winfrey has to take a carefully managed magnesium supplement and make sure she drinks enough water, she said. The shots are done weekly, except when she feels like she can go 10 or 12 days. But packing clothes for the Australian leg of her “Enough” book tour was an off-the-rack delight, not a trip down a shame spiral. She’s even totally into regular exercise.
Plus along with the “quiet strength” she has found in the absence of food noise, Winfrey has experienced another cool side effect: She pretty much couldn’t care less about drinking alcohol.
“I was a big fan of tequila. I literally had 17 shots one night,” she told People. “I haven’t had a drink in years. The fact that I no longer even have a desire for it is pretty amazing.”
So back to that croissant. How did she feel after she scarfed it down?
“I felt nothing,” she said. “The only thing I thought was, ‘I need to clean up these crumbs.’”
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