This redacted copy of an email obtained by The Associated Press discusses the attack on the U.S. Consulate in Benghazi, Libya, on Tuesday, Sept. 11, 2012. Two hours after the mission came under attack, the White House was told that a militant group was claiming responsibility for the violence that killed the U.S. ambassador and three other Americans. (AP Photo)

This redacted copy of an email obtained by The Associated Press discusses the attack on the U.S. Consulate in Benghazi, Libya, on Tuesday, Sept. 11, 2012. Two hours after the mission came under attack, the White House was told that a militant group was claiming responsibility for the violence that killed the U.S. ambassador and three other Americans. (AP Photo)