An American Airlines regional jet went down in the Potomac River near Washington, D.C.'s Ronald Reagan Washington National Airport after colliding with a U.S. Army Black Hawk helicopter on Wednesday ...

The military helicopter that collided with a regional jet near Ronald Reagan Washington National Airport in a crash that ...

Two new videos of the fatal American Airlines crash on Wednesday night are adding to speculation about how it happened.

There were a dozen fatal crashes during Army Black Hawk training missions since January 2014 that claimed the lives of 47 service members.