Robots Protesting Against Killer Robots?

This is not the usual robotics post. It turns out that in Britain, some robots are campaigning against the killer, fully-automated robots used for warfare. Their argument is that, some day, these robots could confuse an innocent human with a hostile target. Another point that they have is that taking the "human" out of these fully-automated robots will cause major conflict. Conflict such as killing innocent people due to confusion of who's the bad guy and who's not. The question is, will this deadly conflict arise in the not-so-distant future?