The most powerful public health official in the US is reviled by some medics - but even some of his critics accept that he is bringing drive to healthcare areas that have long been neglected

During his Senate confirmation hearings, Health Secretary Robert F. Kennedy Jr. suggested he wouldn’t undermine vaccines. “I am not going to go into HHS and impose my preordained opinions on anybody at HHS,” he said. “I’m going to empower the scientists at HHS to do their job and make sure that we have good science that is evidence based.”