New technology could lead humans to relinquish control over decisions to use lethal force. As artificial intelligence advances, the possibility that machines could independently select and fire on targets is fast approaching. Fully autonomous weapons, also known as "killer robots," are quickly moving from the realm of science fiction toward reality.

These weapons, which could operate on land, in the air or at sea, threaten to revolutionize armed conflict and law enforcement in alarming ways. Proponents say these killer robots are necessary because modern combat moves so quickly, and because having robots do the fighting would keep soldiers and police officers out of harm's way. But the threats to humanity would outweigh any military or law enforcement benefits.