In the series "2030" we tackle the critical choices facing humanity over the next decade. In this episode, we probe the alarming revolution in warfare that AI-controlled weapons are ushering in. 2020 witnessed the first suspected use of autonomous killer drones in real-world conflict. AI-assisted "gray zone" tactics, everything from cyberattacks on infrastructure to social manipulation through targeted fake news, are already fast evolving in sophistication. As artificial intelligence threatens to take critical life or death decisions out of human hands, we examine what it will take to safeguard our future on this planet.