The airspace above Reagan National Airport, where a commercial plane collided with an Army helicopter this week, has become ...

Investigators are piecing together why a passenger jet and military helicopter collided in the skies near Washington, D.C., killing all 67 on board both aircraft.

The Army Black Hawk is said to have been flying higher than it should have been when it collided with a passenger jet, killing 67 people. And the air traffic controller on duty was doing a job usually ...