This story was originally published by ProPublica. Five months after taking over the federal agency responsible for the health of all Americans, Robert F. Kennedy Jr. wants to overhaul an obscure but vital program that underpins the nation’s childhood immunization system. Depending on what he does, the results could be catastrophic. In his crosshairs is the Vaccine Injury Compensation Program, a system designed to provide fair and quick payouts for people who suffer rare but serious side effects from shots—without having to prove that drugmakers were negligent. Congress created the program in the 1980s when lawsuits drove vaccine makers from the market. A special tax on immunizations funds the awards, and manufacturers benefit from legal protections that make it harder to win big-money verdicts against them in civil courts. Kennedy, who founded an anti-vaccination group and previously accused the pharmaceutical industry of inflicting “unnecessary and risky vaccines” on children for profits, has long argued that the program removes any incentive for the industry to make safe products. In a recent interview with Tucker Carlson, Kennedy condemned what he called corruption in the program and said he had assigned a team to overhaul it and expand who could seek compensation. He didn’t detail his plans but did repeat the long-debunked claim that vaccines cause autism and suggested, without citing any evidence, that shots could also be responsible for a litany of chronic ailments, from diabetes to narcolepsy. There are a number of ways he could blow up the program and prompt vaccine makers to stop selling shots in the US, like they did in the 1980s. The trust fund that pays awards, for instance, could run out of money if the government made it easy for Kennedy’s laundry list of common health problems to qualify for payments from the fund. Or he could pick away at the program one shot at a time. Right now, immunizations routinely recommended for children or pregnant women are covered by the program. Kennedy has the power to drop vaccines from the list, a move that would open up their manufacturers to the kinds of lawsuits that made them flee years ago.