This spring, Braden Ellis, a student at Cypress College in California, shared a class Zoom recording of his professor’s response when Ellis defended portrayals of police as heroes. Ellis said he did this in order to expose a purported bias against conservative viewpoints on campus. Even though the recording by itself does not prove the existence of long-standing bias, the professor—a Muslim woman who said on the recording that she did not trust the police—became the focus of a Fox News segment, a social-media storm, and death threats. So did other professors at the college. So did administrators. After a few days, the professor was removed from her teaching assignments, pending investigation.