The US defence department issued a directive on 21 November 2012 that requires a human being to be "in the loop" when decisions are made about using lethal force, unless department officials waive the policy at a high level, HRW said.
However, it added that the directive was not a comprehensive or permanent solution to the potential problems posed by fully autonomous systems. "The policy of self-restraint it embraces may also be hard to sustain if other nations begin to deploy fully autonomous weapons systems", it added.
"Governments must address the fundamental question of whether it is inherently wrong to let autonomous machines make programmed decisions about who and when to kill," said Professor Noel Sharkey, chair of the International Committee for Robot Arms Control (ICRAC),
'Killer robots' ban must be part of Geneva talks, says campaign group | Science | theguardian.com