Does the above image make you want to curl up into ball? If not, you must be unfamiliar with Boston Dynamic's BigDog. It's a robotic mule designed to carry around heavy gear to burdensome for ground soldiers to transport on foot. Obviously there's nothing scary about technology that aids our soldiers, but what is scary (to any robot-fearing conspiracy theorist worth his salt) is how uncanny BigDog's movements are, as evidenced by the video below.
Well now DARPA has awarded Boston Dynamics a contract for a Legged Squad Support System. LS3 will be able to do everything BigDog hypothetically can, it'll just be a lot larger in order to accommodate a need for its 20-mile range and 24-hour battery life. It'll take about 30 months to build the behemoth, which means you have about 30 months to build your anti-LS3 bunker.