The British company Thruvision has announced the T5000 Security Imaging System, a camera that can “see” under clothes using what the company calls “passive imaging technology” to identify objects by the natural electromagnetic rays that they emit. The T5000 camera, created by a company called ThruVision, uses what it calls “passive imaging technology” to identify objects by the natural electromagnetic rays–known as Terahertz or T-rays–that they emit. The high-powered camera can detect hidden objects from up