The Transportation Security Administration on Wednesday announced it detected a record number of guns at airport security checkpoints last year in the Baltimore and Washington areas.

The Potomac plane crash has had a cascading effect that will send ripples through the airline industry for days, if not longer. Here is everything to know.

No one is expected to have survived a collision between an American Airlines plane and an Army helicopter Wednesday night near Ronald Reagan Washington National Airport, officials said.WHAT WE KNOW SO ...