Sources: Puck In Flight [John Butler], The Washington Post
quote: Except the screens weren't random. According to Mr. Butler, they appear to be pre-determined, and worse yet the barcode on your ticket tells -- without encryption -- whether you will be screened.
quote: The screens could still be random- they'd just be randomly selected by the computer before printing your ticket.
quote: You don't even have to have a real boarding pass. Download a copy of photoshop and build your own.