Palindrome wrote:

A scene from the airport of the future: A man's pulse races as he walks through a checkpoint. His quickened heart rate and heavier breathing set off an alarm. A machine senses his skin temperature jumping. Screeners move in to question him.

Seriously?

This program has been going on for months with human screeners. The addition of automated technology doesn't change the basics. Many of the positives aren't "false," they just have absolutely nothing to do with terrorism:

Since January 2006, behavior-detection officers have referred about 70,000 people for secondary screening, Maccario said. Of those, about 600 to 700 were arrested on a variety of charges, including possession of drugs, weapons violations and outstanding warrants.

The airports are quickly becoming an excuse for general criminal investigation.

RE: Anxiety-detecting machines could spot terrorists