U.S. Defense Secretary Leon Panetta carries his lunch with cadets in the mess hall at the PLA Engineering Academy of Armored Forces in Beijing, Wednesday, Sept. 19, 2012. U.S. Defense Secretary Panetta is telling Chinese troops that America's new military focus on the Asia Pacific, including plans to put a second radar system in Japan, is not an attempt to contain or threaten China. (AP Photo/Larry Downing, Pool)