Cowards?

AG Eric Holder may have a point. If he meant that in general Americans are cowards for avoiding talk about race - he's wrong. If he meant that political correctness is/has stifled meaningful dialogue on race - he's correct. Political correctness is cowardly. Many keep their thoughts to themselves rather than make the effort to stay politically correct. Political correctness has erected walls between people who might otherwise engage in meaningful, helpful discussion on many topics. Pick one from the A-word to the Z-word.