Last week, David Letterman made waves (to say the least) when he revealed on the air that he had been blackmailed for $2 million regarding information about sexual affairs with female members of his staff. Whether the announcement surprised you or not, it seems that we all feel sympathetic for Letterman's wife and family. Last night Letterman used his audience as a sounding board once again, apologizing first to members of his staff who have been harassed since the affairs went public, and then to his wife Regina, saying that he has his "work cut out for him." Just like the first time around, Letterman used a casual tone and threw a few jokes in to keep things light, but is it really appropriate to follow-up a heartfelt apology to your wife with a Sarah Palin jab? Check out the video below and tell me what you think.