There is a good reason why American commercial airliners have safely flown billions of miles since the last major tragedy.

Last year, senators from Virginia and Maryland sounded the alarm over congestion in the skies above Washington.

But nobody knows enough yet to explain why — including Donald Trump. In time, the National Transportation Safety Board (NTSB) will provide answers and advise how to avert another such tragedy.

WASHINGTON (DC News Now) — Officials with the National Transportation Safety Board (NTSB) held their first press conference Thursday afternoon following a deadly collision just outside of Reagan ...