cylonlover writes "Drones have become a valuable asset for any military force in recent years for both combat and surveillance. But while scanning a warzone from miles away is great from a tactical standpoint, unmanned aircraft can be just as useful in the hands of troops on the ground. That's why British soldiers in Afghanistan have been issued several Black Hornet Nanos, a palm-sized UAV that can scout around corners and obstacles for hidden dangers. Each UAV measures just 4 x 1 inches (10 x 2.5cm) and weighs a mere 0.6 ounces (16 grams), making it easy for troops to carry along with the rest of their gear. A built-in camera transmits live video and still images to a handheld control unit at a range of up to half a mile (800 meters)."