An American Airlines jet and a U.S. Army helicopter plunged into the Potomac River after a midair collision Wednesday night ...

Sixty-seven people are believed to have died after a passenger plane hit a military helicopter in mid-air near Washington ...

The bodies of multiple people have been found as rescue teams continue to search the wreckage of the collision of an American ...

This data point is one of several key mysteries investigators are exploring as they seek to explain what caused the nation's worst air disaster in more than a decade, aviation experts said.