Here’s what experts say investigators will look for as they determine the cause of the crash and possible safety recommendations to the FAA, American Airlines and the Army.
An American Airlines regional passenger jet and a U.S. Army Black Hawk helicopter collided midair and crashed into the Potomac River near Reagan Washington National Airport on Wednesday night.
The patrols allow police to respond to reports of suspicious activity at lightning speed – but there has been a backlash from angry locals fed up by the disturbance.