of technology should be left unrestricted, regulated or banned. so far, the us and the uk have opposed binding agreements to regulate or ban the use of so—called killer robots. james clayton reports from silicon valley on the dawning reality that al researchers say we need to start thinking about today. the nuclear bomb totally transformed warfare. there are those who now say we are on the cusp of something similar. it is a fast track to, i think "dystopia" is the right word for it. the nation is still recovering from the incident yesterday which officials are saying is some kind of automated attack which killed 11 us senators at the capitol building. autonomous weapons combine a confluence of different technologies: drones, facial recognition, artificial intelligence and big data to create a sort of super—weapon that not only detects and destroys but can make that decision itself,