Glenn Greenwald

Just two weeks after getting into a brouhaha with Huffington Post editor Rachel Sklar, MSNBC's Keith Olbermann has found himself in a tussle with one of the chairmen of the Netroots, Salon's Glenn Greenwald. At the heart of this dogfight between two shameless liberal pols was Barack Obama's recent flip-flop on the Foreign Intelligence Surveillance Act, and how Olbermann altered his own views on…