Standing on the Shoulders of Perjury Law - Los Angeles Times: "Fitzgerald's 20-month-long investigation initially focused on whether administration officials had broken a federal law that made it a felony to knowingly disclose the identity of covert agents. But more recently, the inquiry is believed to have shifted to the question of whether officials -- including White House Deputy Chief of Staff Karl Rove -- who discussed Plame with journalists may have misled Fitzgerald and his investigators."