Behavioral screening at airports

Security experts are now looking into analyzing the passengers emotions and intentions instead of checking and screening their baggage.   They are working on a detection system that picks up on signs of emotional strain and security would be able to take that as a red flag.  They are hoping that this process will be more effective and faster than traditional methods.

http://www.cnn.com/2008/TECH/12/02/airport.security/index.html