Originally Posted by
spacev1986
The behaviors they are looking for arent your everyday guy who is pissed off because he doesnt like to take his shoes off, or someone who is a little nervous because theyve never flown before. There are very specific behaviorial traits that would be an indication that someone is in the mindset of doing physical harm to others. Afterall, if a bad guy is smuggling something in his shoes, the last thing hes going to do is throw a fit over taking his shoes off. Or if he is asked questions, the last thing hes going to do is not answer them at all. Hes going to answer them pretty plainly as if rehearsed. Heck, getting a little annoyed when being asked questions by the guvment IS normal behavior.
Wow, you're that smart? It's so simple, all you have to do is derive from what you know of the passenger! Success to you, old chap.
Here is a documentary training video, demonstrating one technique of "mind-reading" threat detection:
http://www.youtube.com/watch?v=U_eZmEiyTo0