Microsoft’s Kinect sensor has been used in many weird and wonderful ways, including turning a bathtub into a giant liquid touch screen, and its obvious use alongside the Oculus Rift. While it’s moving rapidly away from its origins as a games console accessory, self-taught programmer Jae Kwan Ko is extending its use even further as a method of border protection. South Korea and North Korea are separated by a heavily armed border and Demilitarized Zone (DMZ), and Ko has developed software and hardware for a system that uses Kinect to detect moving objects.