Director of National Intelligence Dennis Blair told to Congress Wednesday that the U.S. can target Americans to be killed if it believes they are involved in terrorism. This supports an earlier report that the CIA and JSOC maintain White House-approved "kill lists" of three to four Americans. Blair articulated the policy as requiring high-level approval but did not mention Congressional oversight or judicial review. He described the criteria as "whether that American is involved in a group that is trying to attack us, whether that American is a threat to other Americans." So far, the only confirmed American target is Anwar al-Awlaki. The vagueness of Blair's criteria, as well as the assertion that Awlaki meets those criteria, raises the question: What gets an American citizen on the kill lists?