A few years ago, David Howard, a white aid to the black mayor of D.C., used the word "niggardly" when talking about a budget. He was then forced to resign (he got his job back later) because of pressure from black colleagues who felt offended.
Politcal correctness is good at its heart (to not needlessly offend people), but sometimes it just goes overboard, as I see from previous posts has happened in England.