The real value of polygraph machines -- the big ones or this snake-oil version -- doesn't lie in the science. The real value lies in its ability to spook people into spilling their guts, and incriminating themselves, just by the ominous-looking technology. The results of the polygraph aren't admissible in court. But, everything you say to the examiner is recorded and you are told up front that it can & will be used against you.

All the TSA would have to do is to give these things (or even fake ones) to SPOTniks or ID checkers. They could point it at people and make all sorts of bells & whistles go off. I guarantee people would spill their guts, and the TSA would have a lot more "big catches" every week to be proud of.