https://www.theregister.co.uk/2017/08/21/open_letter_calls_for_autonomous_weapons_ban/

116 artificial intelligence and robotics experts have put their name to an Open Letter calling for the United Nations to work for a ban on autonomous weapons.

“Lethal autonomous weapons threaten to become the third revolution in warfare,” the letter says. “Once developed, they will permit armed conflict to be fought at a scale greater than ever, and at timescales faster than humans can comprehend.”