ABC News reports White House lawyers are debating whether the US can legally assassinate a US citizen in Yemen. Anwar al-Awlaki is a US-born cleric who has been accused of having ties to the failed Christmas Day airline bombing and the shooting at Fort Hood. ABC reports US officials fear the possibility of criminal prosecution without approval in advance from the White House for a targeted strike against Awlaki. Awlaki has not been charged with any crimes under US law.