..looks like the start of the ray gun..
the Department of Defense’s Active Denial System, which is designed to disable hostile individuals with nonlethal force. The system, jointly developed with Raytheon, uses a focused microwave beam to rapidly heat the surface of the skin, causing pain that induces targeted individuals to seek cover. Apparently, development has gone well, because the system has made it out of the labs and into the hands of the Raytheon marketing department—they’ve termed it Silent Guardian™.
Doesn’t sounds too practical right now but I’m sure we’ll see it shrink soon enough…[via]