South Korea unveils robotic prison guards, promises futuristic cavity searches To round out their drug-sniffing clone dog army, South Korean authorities are now experimenting with robotic prison guards. Lest you think these cyber-wardens will be equipped with gatling guns in the style of Robocop's ED-209, know that this alarm-equipped bot has more in common with the Death Star's delivery droids. Of course, the robots' responsibilities may expand as the technology improves. Explains Reuters of these security machines' potential uses: The robot has been designed to patrol a prison autonomously, but an IPad will allow manual control as well. The next...