U.S. Secretary of Defense Leon E. Panetta attends a meeting of NATO defense ministers at the alliance's headquarters in Brussels on Wednesday, Oct. 10, 2012. (AP Photo/Virginia Mayo)

Photo by: Virginia Mayo

U.S. Secretary of Defense Leon E. Panetta attends a meeting of NATO defense ministers at the alliance's headquarters in Brussels on Wednesday, Oct. 10, 2012. (AP Photo/Virginia Mayo)