Here is a terahertz camera that lets you see through various materials in real time. INO’s MICROXCAM-384i-THz camera provides live video images and is optimized for the 70–3,189 µm/4.25–0.094 THz waveband. The camera can be used for live detection of concealed objects and other surveillance tasks.
The above video shows how this camera can see through objects. More info is available here.