Washington DC plane crash latest: Airport tower staffing 'wasn't normal' during collision as investigators 'look at all humans involved'
Donald Trump has confirmed there are no survivors of a collision between an American Airlines passenger jet and a helicopter ...
Washington plane crash: Air traffic control tower 'understaffed' during deadly collision, FAA report finds
Staffing was "not normal" in the air traffic control tower at the time of the deadly mid-air collision near Washington DC ...