"FILE- In this Nov. 7, 2014, file photo, Department of Defense Press Secretary Rear Admiral John Kirby, speaks during a news conference, at the Pentagon in Washington. State Department spokesman John Kirby said that ""due to privacy considerations"" he had nothing further to add about the missing Americans. The U.S. Embassy confirmed Sunday, Jan. 17, 2016, that ""several"" Americans have gone missing in Iraq. (AP Photo/Manuel Balce Ceneta, File)"