A number of robots in development for the military are being given increasing amounts of autonomy. The question is now how they will be used. But, despite widespread press about armed drones hunting down terrorists and insurgents in Afghanistan and Pakistan and the increasing use of ground robots to fight roadside bombs, the truth is that most military robots are still pretty dumb. In fact, almost all unmanned systems involve humans in almost every aspect of their operations—it’s just that instead of sitting in a cockpit or behind the wheel of a vehicle, humans are operating the systems from a...