Given the recent interest in creating swarms of robotic flies that carry explosives and contain face recognition circuitry (as described in Bot Flies, The Economist, Dec 16, 2017) will a time come when the enablers of such killing machines will be made to account? We all know that machines will never—and I emphasize never—be able to make decisions without the assistance of humans so expect arguments such as “the machine did it” to fail in a court law. Can you imagine a world where people like Robert Oppenheimer (the developer of the atomic bomb) are hauled off to prison and later put to death for the creation of lethal autonomous weaponry?