Airports create a strange mix of routines and surprises, and that little moment when a TSA officer waves you over for a quick hand swab sits right in the middle. Most travelers simply lift their palms ...

Four letters on your boarding pass could change your airport experience. Here's what SSSS means and why some travelers might ...

If you've been through airport security checkpoints, you might have noticed TSA agents with white swabs. They test all kinds of things, from luggage to the hands of passengers, but some of the most ...