Heard that conservatives are being disinvited, or even assaulted, when they speak at university campuses? Well, an unreconstructed 1960s Marxist who has praised the worst human-rights abusers abroad and supported violence at home is being welcomed at campuses to tell adoring crowds how "diversity" should be used to change America. If you're between 25 and 50, you may never have heard of Angela Davis. But if you're older – or apparently college-age – chances are you have.