If you're a frequent flyer, get ready for new rules at the security checkpoints. Starting this week, if you're chosen for a pat down, it might be more invasive than before.

The L3 portals have been tested for the past few months in 10 airports across the country, where they were used as an alternative to a personal pat-down search, as a secondary screening procedure.

A federal judge barred evidence from a pat-down search from being used against a defendant on Monday, concluding a Sterling police officer violated the man's rights by searching him without a ...

Sweat stains on clothing can trigger alarms on airport body scanners. False alarms are common, and travelers can request a private pat-down.