Representative Peter king (R-New York) wrote to Lt. Gen. Ronald Burgess, director of the Defense Intelligence Agency (DIA), to inquire whether 9/11-related detainees being held by the United States are been interrogated about the possible role U.S.-born cleric Anwar al-Awalki, who was killed by a U.S. drone on 30 September, played in the 9/11 attacks.