Right-wing commentators are pretending that thousands of newly released emails from Anthony S. Fauci represent some kind of smoking gun against the government’s top infectious-disease expert, whom they have recently decided to try to destroy. I haven’t been nearly as excited by the emails, which are mostly full of mundane correspondence. But there’s at least one line in them that stands out. “I genuflect to no one but science and always, always speak my mind when it comes to public health,” the normally even-tempered scientist wrote in March of last year, to an epidemiologist who had accused a number of...