The F.A.A. restricted helicopter routes nearby in the aftermath of the Wednesday collision. For some officials, the concerns about clogged airspace were a long time coming.

The Army identifiies two soldiers aboard the Black Hawk that collided midair with American Airlines plane on Wednesday. Third soldier's ID being held.

In the three years before the deadly collision between an Army helicopter and an American Airlines flight near Reagan National Airport, at least two other pilots reported near-misses with helicopters while landing at the airport,