https://www.theverge.com/2017/8/21/16177828/killer-robots-ban-elon-musk-un-petition

Leaders in the fields of AI and robotics, including Elon Musk and Google DeepMind’s Mustafa Suleyman, have signed a letter calling on the United Nations to ban lethal autonomous weapons, otherwise known as “killer robots.” In their petition, the group states that the development of such technology would usher in a “third revolution in warfare,” that could equal the invention of gunpowder and nuclear weapons.

“Once developed, [autonomous weapons] will permit armed conflict to be fought at a scale greater than ever, and at timescales faster than humans can comprehend,” write the signatories. “These can be weapons of terror, weapons that despots and terrorists use against innocent populations, and weapons hacked to behave in undesirable ways.”