WASHINGTON (Reuters) - The top U.S. intelligence authority issued an unusual public statement on Friday declaring it now believed the September 11 attack on U.S. diplomatic facilities in Benghazi, Libya, was a "deliberate and organized terrorist attack." The statement by the office of Director of National Intelligence James Clapper acknowledged that it represented a change in the U.S. intelligence assessment of how and why the attack happened. During the attack on two U.S. government compounds in the eastern Libyan city, four U.S. ...