** FILE ** Chairman of the Joint Chiefs of Staff Adm. Mike Mullen speaks during a media availability at the Pentagon on Thursday, June 16, 2011, in Washington. (AP Photo/Alex Brandon)

Photo by: Alex Brandon

** FILE ** Chairman of the Joint Chiefs of Staff Adm. Mike Mullen speaks during a media availability at the Pentagon on Thursday, June 16, 2011, in Washington. (AP Photo/Alex Brandon)