 Any regulation of speech has to be done in a way that's neutral with respect to the content of the speech. And the law school, which is the place I know best, has been, so far as I've been able to observe, admirably protective of multiple points of view. Though everyone understands that there are things that you can't do. You can't disrupt a class. You can't seize property. You can't hurt anybody. You can't impose a direct threat on people.