When we say “automatic killer robots,” we mean robots that can kill without the interference of humans. Drones don’t count because they are controlled by people. One of the automatic killer robots we’re talking about is the SGR-A1, a sentry gun jointly developed by Samsung Techwin (now called Hanwha Techwin) and Korea University. The SGR-A1 resembles a huge surveillance camera, except that it has a high-powered machine gun that can automatically lock onto and kill any target of interest.
The SGR-A1 is already in use in Israel and South Korea, which has installed several units along its Demilitarized Zone (DMZ) with North Korea. South Korea denies activating the auto mode that allows the machine decide who to kill and who not to kill. Instead, the machine is in a semi-automatic mode, where it detects targets and requires the approval of a human operator to execute a kill.