The service is often responsible for ferrying lawmakers and other V.I.P.’s across the area, and near Reagan National Airport.

The US Army Black Hawk helicopter involved in the Washington DC crash with an American Airlines passenger aeroplane was flying too high and outside of its approved flight path, according to a report

The crash of an American Airlines passenger jet and a U.S. Army Black Hawk helicopter near Reagan Washington National Airport on Wednesday highlighted issues around the congested airspace shared by civilian and military aircraft over the U.