A group of Earth's best brains are uniting to take a stand against killer robots.
Stephen Hawking and Apple co-founder Steve Wozniak are among around 1000 people who have signed an open letter to the United Nations, urging it to ban artificially intelligent killing machines.
Auckland University computer science lecturer Dr Paul Ralph says autonomous killing robots are able to choose what to shoot at, when to shoot – and whether to make the shot at all.
"Scientists are worried this will trigger a global arms race in artificial intelligence, similar to the Cold War with nuclear weapons."
Dr Ralph says the end result could be technology that could destroy everything on Earth.
Watch the video for the full interview.