A senior UN official says battlefield robots that can kill without human control are a 'small step' away and should be banned

Angela Kane, the UN’s high representative for disarmament, said governments should be more open about programmes to develop the technology and she favoured a pre-emptive ban before it was too late.

http://www.telegraph.co.uk/news/uknews/defence/11059391/Killer-robots-a-small-step-away-and-must-be-outlawed-says-top-UN-official.html