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 that now say that we're 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 yesterday's incident, 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 superweapon that not only detects and destroys, but can make that decision itself, and can be owned not just by states, but potentially by organisations, terrorist groups, anyone.