The CDC wants to be certain, so it typically waits for a critical mass of scientific evidence before making declarative statements. That takes time. Yet the communication to the public in this pandemic seemed to be worse than normal, and resulted in a huge loss of public trust. Over the past...

We have no hard evidence to support the idea that the novel coronavirus was leaked from a lab, let alone a smoking gun to validate that hypothesis. But despite pushback on this story from many scientists and the media early on, it’s back in the news, and many are talking about the possibility of...