Political Correctness means to lie about history so as to not offend anybody. Example, it's politically incorrect to say that the Crusades were in response to 450 years of islamic invasion, tyranny, enslavement, forced conversions, rape, theft and murder. It doesn't matter that it's true, it might hurt spmebody's feeeeeeelings and therefore should never be spoken about. However, it IS Politically Correct to talk about the wicked things the Crusaders did because we live in a Guilt Society, we feel remorse for evil things done by our side. Muslims on the other hand come from a Shame Society and will never admit doing anything wrong because that would bring shame upon them.