Robert F. Kennedy Jr., an anti-vaccine activist and environmentalist, for years gained a loyal and fierce following with his biting condemnations of how the nation's public health agencies do business. And that's put him on a direct collision course with some of the 80,000 scientists, researchers, doctors and other officials who work for HHS, especially with President-elect Donald Trump tapping him to head the agency. If confirmed, Kennedy will control the world's largest public health agency, and its $1.7 trillion budget.
