DARPA has created a robot worm it calls a breakthrough in soft robotics.

http://www.MilitarySkyNet.com hosts news stories, photos, video clips and other forms of Multi Media pertaining to the Army, Navy, Air Force, Marine Corps and Coast Guard's rapid development and proliferation of robotic weapons, machines and fully autonomous weapons that could select and engage targets without human intervention. Robot warfare and autonomous weapons, the next step from unmanned drones, are already being worked on by military scientists around the world and will be available within the decade. Deploying robot soldiers will potentially save lives of real soldiers. Autonomous robotic weapons won't get tired and they won't seek revenge if their colleague is killed. MilitarySkyNet.com documents the path to giving machines the power to decide who lives and dies on the battlefield