Free speech is as tender a subject as it is irritating. Tender because it’s one of the few parts of the Constitution people still take seriously, as it goes to the heart of a freedom we take very seriously; irritating because no one invokes the right unless they’re caught advancing the civilized world’s dumbest ideas, theories, or “art.” Ward Churchill comes to mind. Churchill is a tenured professor at the University of Colorado at Boulder (home of Division 1A’s most rape-happy football team) who, not long after the Tragedies, wrote an essay referring to those who died at the World...