A british company called ThruVision has developed a surveillance cam that is able to detect weapons, drugs or explosives behind people’s closes from up to 80 feet (25 meters) away. The T5000 camera utilizes a method called the "passive imaging technology" to identify objects by the emitted natural electromagnetic rays known as Tera hertz or T-rays.

The cam is able effective even on moving subjects but at the same time is not able to reveal any embarrassing body details, also based on ThruVision the screening process is harmless.

This technology could be used in military and civilian applications, for example airports, sporting events, school or shopping malls.

Interesting but also scary, welcome to the surveillance society.