New Radar Sees Through Walls

RadarVision has developed a radar system that uses ultra-wideband technology to produce three-dimensional pictures of the space behind a wall from a distance of up to 20 metres. The pictures, which reportedly resemble those produced by ultrasound, are relatively high-resolution and are produced in real time. It sounds like the potential benefits of this device are huge, saving lives of soldiers, firemen, or police; the potential for privacy invasion, however, is similarly large