[xone]

Could this be used for airport security?

Elicitation? Probably not in the US, it isn't usually a quick process time-wise. Although I believe the Israelis use it as part of a comprehensive approach to their security. Body language, not being afraid to offend are all useful tools for culling and IDing bad guys from a crowd.

[Cboldt]

You'll get elicitation from border control, rarely if ever from TSA. Cops do it all the time. That pamphlet aimed to increase awareness of being the target.

IIRC, the alleged Osama blunder had to do with his use of a satellite phone.