The Transportation Security Administration is expecting 2018 to be the busiest travel season on record. There are things you can do to make it easier, including checking your TSA Pre✓® membership status.
UPDATE 2:30 p.m. EST: NBC is reporting that one TSA agent was killed and three others wounded. Airport police shot and may have killed the gunman at the scene. The shooter, whose identity has not been confirmed, was taken into custody after being shot.