FILE - This March 27, 2008, file photo, shows the Pentagon in Washington. Ali Awni al-Harzi, an Islamic State operative suspected of involvement in the 2012 attack on the U.S. diplomatic outpost in Benghazi, Libya, has been killed in a U.S. airstrike in Iraq, the Pentagon said Monday, June 22, 2015. (AP Photo/Charles Dharapak, File)