Remember that skeletal body scanner in Total Recall? A group of researchers from Wright State Research Institute wants to turn that little piece of science fiction into real life, with a scanner that can ID terrorists by analyzing their skeletal structure from up to 150 feet away.
The system can scan people as they walk in a moving crowd, and compare each person's skeletal features against a database of known terrorists. Then using information on bone shape, density, and prior broken bones they can identify any suspect individuals. Beyond airports, they envisage the system being used at sporting events, political demonstrations, and other places likely to draw unfriendly people.
Just how their system gets the images without using massive doses of X-rays isn't clear, but perhaps we need to start considering a complete suit to go along with that tin foil hat.