Students at the University of Michigan, beware. If you say anything politically incorrect or out-of-line with the political and social orthodoxy on your campus, you may get a knock on your dorm room door from the university’s equivalent of the Thought Police, and be forced into a re-education camp. Or you may be suspended or thrown out of school, potentially damaging your educational prospects and your entire future professional career. If this sounds like an exaggeration, consider a new lawsuit filed in federal court in Michigan by Speech First, Inc., against the president of the University of Michigan, other...