Robotics experts are at odds over ethical concerns in what some see as the beginning of an international robot arms race. The concern arises over having robots decide when to “pull the trigger.” Ronald Arkin, Regents' Professor, points out that human combatants are far from perfect on the battlefield. “With a robot I can be sure that a robot will never harbour the intention to hurt a non-combatant. Ultimately they will be able to perform better than humans.” Source: ThomasNet