It seems like parts of the FACS (facial coding system) are actually available online because the psychology professor who formulated it is selling the method to the TSA. Looks rather complicated. Usually complicated stuff is not terribly efficient, especially if you ask simple people to do it. It seems they have a false positive rate of 99% and that even a national review board found that there was a massive potential for invasion of privacy. I know I wouldn't want to be judged by the way my upper lip curls or stiffens when I am confronted with what are rather invasive and annoying searches anyway.

Here is a link:

http://www.face-and-emotion.com/data...anual/TOC.html

And another one:

http://www.mindhacks.com/blog/2007/0...ogy_of_be.html