Fully autonomous weapons

That's the name for drones that don't need an operator.  They are programmed to find and destroy 'the enemy'.  Israel already sells the Harpy, which is programmed to recognize and automatically dive bomb any radar signal that is not in its database of “friendlies.”  The military looks on these weapons as a way to lower the military casualty rate.  I look on them as devices that are programmed by human beings; like anything made by people, they are subject to error.  But, with the world's move away from the human, it is likely that these weapons will be a reality in relatively few years.