"Someone may soon be able to tell what types material are in your pockets from tens, and possibly thousands, of feet away. Using terahertz remote sensing, detectors could see through walls, clothing and packaging materials and immediately identify the unique terahertz waves of the materials contained inside, such as explosives or drugs." - Lit

Cool, I remember one of my profs telling me about this when I was in undergrad - LANjackal

That's pretty cool...the public typically hears about science tech. findings a while after they have been in production (of course not always the case). - Lit