Why is the former Wyoming senator dancing to the viral sensation? Excellent question.
Here, for some reason, is presidential debt-reduction chair Alan Simpson dancing "Gangnam Style" and offering dire warnings about how the olds (i.e., people like himself who can't dance well) are going to steal all the government's money if you don't "stop Instagramming your breakfast and tweeting your first-world problems."
OK, so the real reason is that Simpson is trying to build support for major debt-reduction measures, which he's made a personal crusade since chairing a commissions with Erskine Bowles. While it's tough to predict the video's impact -- it does seem to subscribe to the Underpants Gnome theory of debt reduction -- the former Wyoming senator's video is an improvement on the time he hoped Grover Norquist drowned in a bathtub, and his knowledge of pop music has improved since he complained about kids "listening to the Enema Man and Snoopy, Snoopy Poop Dog." On the other hand, Rep. John Lewis will destroy him any dance competition.