WUSA9 spoke with Todd Yeary, who worked in air traffic control in Chicago on 9/11, about what it is like to communicate with aircraft.

An Army Black Hawk helicopter collided with a regional jet near Ronald Reagan Washington National Airport on Wednesday evening, U.S. officials confirmed to ABC News.

Latest news and live updates after an American Airline jet collided with a Black Hawk helicopter over the Potomac River.

Dozens of people are dead after a regional jet collided with an Army Black Hawk helicopter Wednesday night over Washington, D ...

A regional jet carrying 64 people collided with an Army Black Hawk helicopter. Reagan National Airport grounded all flights.

The deadly collision of an American Airlines regional jet and a U.S. Army Black Hawk helicopter late Jan. 29 in Washington, D ...

The cellphone footage provides the clearest angle yet of Wednesday’s tragic midair collision in Washington, DC, that killed ...

Rescue crews will return to the Potomac River on Friday morning as they continue searching for victims of Wednesday night’s ...

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 ...

Americans turn to their leaders for solace in times of mourning. Donald Trump has used national tragedies to make political points or demean critics.

Wayne Conrad lost his grandson Spencer Lane and daughter Christine Lane when American Airlines Flight 5342 crashed. "We're still in a state of shock down here," he tells PEOPLE.

Authorities have switched to a recovery mission in the Potomac River following a midair collision between an American Eagle ...