Westworld.

There's a discussion going on at the UN about the banning of some types of 'robotic weapons'.  This is reported under a catchy 'Robot Wars' headline in the Guardian, whereas the definition of a 'robot' is a bit vague, and maybe that's why its' taking so long to get agreement.
The media are keen to portray these weapons as marching robots in the human form as in the film 'I Robot', eventually turning rogue and killing all mankind, but I reckon they are taking about much simpler types of automation.  It seems to me that automated weapons have been around for years in one form or another, probably since Smith and Wesson invented the automatic revolver that loaded the next bullet without any intervention.  I remember reading somewhere that trip wires were rigged up to spray bullet across no-man's land in Berlin during the cold war, and drones of one sort or another have been flown remotely for years.  When the button is pressed on a ;smart' torpedo, the weapon itself decides what action to take to hit the target, so why not have the torpedo decide when to launch itself? 
The genie is already out of the bottle.