"The Language Police" by Diane Ravitch talks about how grade school textbook publishers have "sensitivity panels" that do "bias reviews," removing references to things that might be offensive to any conceivable group. Stories set in hills and mountains have been omitted for being "regionally biased," and thus might harm the self-esteem of kids who live in the plains.
You have GOT to be kidding!!! This country has gone nuts, and I am heading for the hills !