A few weeks ago, the American army started deploying new warbots called the Talon Swords in Iraq, but 2 days ago, an order was issued to recall them all due to their robotic insurgence.
Talon Swords are equipped with up to 3 M249 machines guns. The robot moves and aims on its own, but only its human controller can fire. So, every single bullet fired is approved by a human.
What happened is that the Talon Swords aimed at friendly soldier repeatedly. No inappropriate shots were fired and no causalities occurred thanks to the human-only firing system, but the bots had to be recalled.
It seems that it will take quite a while for warbots to enlist in army again."Once you've done something that's really bad, it can take 10 or 20 years to try it again", said Kevin Fahey, the Army's Program Executive Officer for Ground Forces.