 But the other 16 years as a professor and 20 years on the board of directors of the National Association of Scholars, I saw firsthand. These people, they live in an intellectual ghetto. They're impervious to reason. You try to debate with them, and they just walk away. And just remember this. Back in the 1980s, I cut my teeth on TV on Crossfire with Tom Braden and Bob Novak and Pat Buchanan and others and Michael Kinsley, and later with Hannity and Combs.