Tucker Carlson has been ahead of the curve on coronavirus coverage. Earlier this month he did a segment arguing that, contrary to what some other Fox hosts were saying at the time, the coronavirus was much worse than the flu. He was right. More recently, Carlson argued that it was obvious everyone should start wearing masks to protect themselves and others, contrary to the word from health officials.On last night’s show, Carlson raised another hot topic related to the virus: It’s origin. The story we’ve all heard many times is that the virus arose from bats in a wet...