What investigators have revealed about the D.C. plane collision
Investigators are trying to understand why an Army Black Hawk helicopter and American Airlines regional jet collided in mid-air near Washington, D.C. Sixty-seven people were aboard the two aircraft.
Investigators are trying to understand why an Army Black Hawk helicopter and American Airlines regional jet collided in mid-air near Washington, D.C. Sixty-seven people were aboard the two aircraft.
