The Prism 200c Backpack can see through walls

Before I begin this posting, let me put an image in your mind that is
straight out of a spy thriller. It starts with a guy like the one in
the image, wearing a backpack and leaning up against a brick wall. He
then takes out a cell phone and Bluetooth earpiece and looks like he is
texting and talking on the phone at the same time. However, this is not
the case.



The man who is just