Artificial intelligence is increasingly being used for warfare. Think of drones that autonomously search for targets, computer systems that process large amounts of data on and around the front lines, and guns that shoot almost automatically. The wars in Gaza and Ukraine, with tens of thousands of casualties, are also being driven by smart AI. Law professor Jessica Dorsey (Utrecht University) compares AI to doping: it helps you strike faster and on a larger scale. She is deeply concerned about the lack of transparency and control. How can we curb killer AI?