Matthew C. Ehrlich is Professor Emeritus of Journalism at the University of Illinois at Urbana-Champaign, Ehrlich's research focuses on social and cultural history. Matt is the author of "Dangerous Ideas on Campus: Sex, Conspiracy, and Academic Freedom in the Age of JFK" where in the 1960s, University of Illinois professor Leo Koch wrote a public letter condoning premarital sex. He was fired. Four years later, a professor named Revilo Oliver made white supremacist remarks and claimed there was a massive communist conspiracy. He kept his job.