Several years ago, Hillary Clinton was giving a talk about her mother, and she told a story about her mother's resilience. Her mother said something like: "I believe in treating people with dignity. Everyone's life matters. All lives matter." Critics pounced. Clinton's last sentence was (in one narrative) a covert repudiation of the Black Lives Matter movement. A litmus test was devised. Clinton was later asked, in front of cameras: "Do Black lives matter? Or do ALL lives matter?" The obvious, common-sense answer--"both!"--was not an option. This was like something from a Nabokov novel. Elsewhere, a Hamline professor of art history made a respectful announcement to students: "In a moment, I will show an image of the prophet Muhammad." Students had an opportunity to leave--first. Despite the announcement, some students decided that they were irreparably harmed by the teacher's choice--and the teacher was not retained. When criti...