System causes pain without injury and can be used on pirates

China has developed a nonlethal, directed-energy microwave weapon, that experts suggest can be used in anti-pirate and anti-terrorism operations.

The WB-1 MMW Denial System can cause unbearable pain without injury by projecting millimeter-wave beams onto a human body to excite the water molecules under the skin, according to China Poly Group Corp, one of the country's major arms exporters.