The US may never have used its microwave pain gun in combat, but that isn't stopping China from exploring the concept of non-lethal force. Local manufacturer Poly has unveiled the WB-1, a millimeter-wave weapon that heats the water under your skin (much like the US' Active Denial System) to deliver intense agony without injury. It currently works at a relatively short range of about 262 feet, but extra power can bump that up to 0.6 miles -- if you know where to shoot, you could cause misery from afar. It's reportedly meant to be used on the high seas, where it could enforce China's territorial claims without the need to capture or destroy wayward vessels.