At Reed College in Oregon, a student claims that his professor banned him from class because he disputed the existence of a "rape culture" in the United States as well as the (obviously bogus but often stated) statistic that one in five college women is the victim of sexual assault. The student, Jeremiah True, has begun a petition calling on the professor to allow him back into class. I have signed it and I encourage you to do so as well.
I don't know to a certainty that the story is true or complete. Nevertheless, the following is the text of an e-mail I just sent to the professor in question.