groups warn they raise big moral questions about war and who decides to kill. our correspondent, imogen foulkes, joins us from geneva. hello. so this sounds like one of these questions from sci—fin being does have the final decision whether thatjerome takes that attack at the last few minutes or not. the next step up, some of these are also being used apparently are pre—programmed art weapons, killer robots if you like, where they apparently know what they are going to do, who they will kill even long before they leave their port. so you have this big ethical question, who is the chain of command? who if something goes catastrophically wrong, hundreds of civilians get killed, who is responsible? a machine? how do you prosecute a machine for war crimes? this is where you have the international committee of the red cross, the guardian of the geneva conventions, very concerned, putting its own proposals into the meeting into geneva this week about controls. i was speaking to the chief scientific and policy adviser, here is what he had to say about the worries. .., , , worries. critically, the user doesnt worries. critically, the user doesn't choose _ worries. critically, the user