Vaccine questions shouldn’t be verboten

In the Harry Potter series, the villain Lord Voldemort is known as “He-Who-Must-Not-Be-Named.” There’s a similar sentiment whenever someone expresses a heterodox opinion on vaccines.

The long knives are already out for Health and Human Services secretary nominee Robert F. Kennedy Jr. While there are valid concerns among pro-life activists, the most prominent objection is Kennedy’s vaccine skepticism.

Sen. Chris Murphy, D-Conn., labeled Kennedy a “denier of science.” Kennedy has...