Earlier this month, there was a national uproar when a Michigan state legislator was disciplined for using a clinical sexual term during a debate. According to linguist Geoff Nunberg, it was just one of many such incidents that reflect a trend he calls the New Reticence.
http://www.npr.org/2012/06/25/155706549/taboo-revival-talking-private-parts-in-public-places?ps=cprs