Charles Petersen: What do you find helpful in turning back to McCarthyism as you’re analyzing the Trump–Musk moment today? Corey Robin: One of the things that I discovered about McCarthyism when I was writing my first book on fear, which I hadn’t known before, was how few people actually went to jail as a result of the anticommunism investigations. I start with that because we have an image of McCarthyism overly focused on the man himself, the rogue figure of the senator making outlandish accusations, slandering people. And the narrative goes from that story to communists in jail. But in the end only about two hundred people were imprisoned during the McCarthy era for what we would think of as political reasons. That obviously should not be underestimated, but from the perspective of comparative politics it’s not a lot. Even so, under McCarthyism, you had a whole society on lockdown for an extended period of time.…