People are justifiably alarmed at the prospect of Robert F. Kennedy Jr. being in charge of U.S. health policy. He amplifies conspiracy theories, is anti-vaccine and makes bizarre health claims that aren't backed up by evidence. But underneath his rhetoric, Kennedy has floated some interesting ideas, like limiting processed foods or banning pharmaceutical ads. Deputy Opinions editor Charles Lane talks with physician and columnist Leana Wen and editor Rob Gebelhoff about separating fact from fiction and what we should actually do to make America healthier.