Political Correctness

What is political correctness?  Has it always existed?  What’s “political” about it?  Some people think that concerns over being PC lead to censorship and the stifling of free debate.  Others think the label “politically correct” is nothing but a demeaning term for values we should espouse anyway, like appropriateness, politeness, fairness, and respectfulness.  Is “politically correct” just a nasty label used to diminish and belittle social progress?  Or do the assailants of political correctness have a point?  John and Ken take on political correctness with former political speechwriter Leonard Steinhorn, Professor of Communication at American University.