SAN FRANCISCO (KGO) -- 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.

CHICAGO — With all the screening technology at U.S. airports, the last line of defense is still the human hand: the pat-down search. But aviation experts say the pat-down is often ineffective, in part ...

Sweat stains on clothing can trigger alarms on airport body scanners. The scanners use millimeter wave technology that can detect water and sweat, leading to false alarms. Travelers experiencing a ...