The head of the National Air Traffic Controllers Association says controllers around the country are devastated by the crash. He said air traffic control staffing is a major issue around the country.

The audio indicates that air traffic controllers tried to warn the Army helicopter about a nearby Canadair Regional Jet.

Air traffic control audio shortly before the collision captures the helicopter pilot saying, “PAT 2-5 has aircraft in sight, ...

The Federal Aviation Administration (FAA) has indefinitely closed helicopter routes near Reagan National Airport following ...

One air traffic controller had been doing the job of two ... You have to go through extensive background security medical checks. Then there’s on-the-job training,” he said.

short time later, audio we obtained pinpoints the moment inside the air traffic control tower as they witnessed the collision. Audible gasps heard in the background and seconds later. The national ...

Air traffic controller audio obtained by CNN from ... including a loud “oooh” in the background apparently from the tower, at the moment of the crash. "Tower, did you see that?" ...