The goal of modern disinformation campaigns is not necessarily to turn audiences into true believers but rather to turn them into cynics, to persuade them that you can’t trust anything said by any institution, whether media or science or government. In this world view, there is no such thing as objective truth, everyone is biased or otherwise untrustworthy, so the conclusion is that you need a strong man—a Vladimir Putin or Donald Trump, say—to lead you through. Today’s guest has an antid...