As Scooter Libby’s defense begins in Washington, a slew of reporters — including Bob Woodward, Bob Novak, and Evan Thomas — testify that Libby was not their source in the Plamegate fiasco, with Novak pinning the onus on Karl Rove (and the previously-outed Richard Armitage.) Hmm. Good to know, but whether Libby was the only White House official throwing around Wilson’s name or merely one of a team of Dubya flaks doing the same seems incidental to the question of whether he perjured himself.