Warning — this interview will make you mad.

Diane Ravitch, a professor of education and author of “The Language Police,” explained on my show today how political correctness and censorship by both the left and the right has directly affected what kids are taught in our schools. Some of the things that can no longer even be mentioned in textbooks or on standardized tests: the Founding Fathers, owls, dinosaurs, oceans, yachts, Stuart Little, and Mt. Rushmore!

Listen to our conversation here.