Rushing a Covid-19 Vaccine Is a Terrible Idea

The coronavirus pandemic has upended lives and disrupted the global economy. The sooner we can get a vaccine, the sooner we have a chance at returning to normal. That doesn’t mean we should needlessly rush it.

Vaccine development and approval normally takes several years, but it has been squeezed into a period of less than year. In Donald Trump’s America, that’s not soon enough -- but there is a way to speed things up even further. The Food and Drug Administration, as the gatekeeper for any new medicine coming to...