Many of us take public transportation or fly in airplanes on a regular basis, but have you ever wondered how all of these things work? This collection of transportation articles help explain how people get from place to place.
It's happened to all of us. You're at the front of the line, about to board, when you realize you can't find your paper boarding pass. Or it won't pull up on your phone. Facial recognition technology could change that — and help with security, too.