Robert Kennedy Jr. is trying to convince Americans that vaccines will hurt them. No matter what superficial throwaway statements he offers the public to the contrary, that’s the obvious goal. In the newest front in his cause, the Department of Health and Human Services Secretary has canceled $500 million in mRNA research, an effort President Donald Trump once called a “modern-day miracle.” The HHS head, who in 2023 said no vaccine was “safe and effective,” says he still supports “safe, effective vaccines.” It should be noted that the notion of RFK Jr., a progressive until five minutes ago, acting as...