Delta Air Lines has left passengers stranded overseas, and it could happen to you if you don't know this weird rule.

JetBlue and Delta are studying whether to do away with the paper boarding pass, even the smartphone boarding pass, and replace them with biometric scanners -- of the retina, face, or fingerprints. The ...

There are some technological innovations I’m deeply skeptical of, things like Venmo or 23andme don’t sit well with me. I don’t want a third-party company getting access to my bank account or my DNA. I ...