The Pentagon might have to buy Xbox controllers en masse in the future if the military ends up using them to control its laser weapons and other equipment. In fact, the US Navy will begin stocking its modernized Virginia-class submarines with them, starting with the USS Colorado that's expected to be commissioned in November. Sailors aboard the high-tech submarine will use the Xbox controller to maneuver its periscope. See, unlike periscopes in movies, wherein a single person has to peer through an eyepiece, the high-tech version of the instrument uses high-resolution cameras and displays images on big screens.