Air Traffic Control (ATC) audio from Wednesday’s collision between an Army Black Hawk helicopter and an American Airlines jet ...

This data point is one of several key mysteries investigators are exploring as they seek to explain what caused the nation's ...

Reports by pilots and government investigators show how concerns over coordinating airplane and helicopter traffic at Reagan ...

Sixty passengers and four crew members from the plane and three Black Hawk helicopter personnel were killed, and a recovery ...

Video recorded by bystanders shows the harrowing moment when the 2 aircraft crashed into one another, causing an explosion ...