Airline Security: Logic, common-sense need not apply.

Wired News: Airline Security a Waste of Cash:

"They're bizarre lists: people -- names and aliases -- who are too dangerous to be allowed to fly under any circumstance, yet so innocent that they cannot be arrested, even under the draconian provisions of the Patriot Act. The Selectee list contains an equal number of travelers who must be searched extensively before they're allowed to fly. Who are these people, anyway?

The truth is, nobody knows. The lists come from the Terrorist Screening Database, a hodgepodge compiled in haste from a variety of sources, with no clear rules about who should be on it or how to get off it. "