Fully autonomous lethal weapons—robots that can select and engage targets without human intervention—are fast becoming possible. They might minimize casualties and protect civilians in times of war. But is it morally wrong to put a computer in charge of life or death decisions? Could system errors lead to flash wars? But, as war gets faster and more complex, is it even feasible to keep humans in the loop?

For links to materials referenced in the episode, suggestions for further learning, and guest bios, visit bravenewplanet.org.