Potomac Crash—An Accident Decades In The Making?

The Jan. 29 collision of an American Airlines CRJ-700 with a U.S. Army UH-60L Black Hawk was the worst aviation accident in the U.S. since 2009. Aviation Week's Jens Flottau, Sean Broderick, Brian Everstine and Christine Boynton discuss potential contributing factors and the consequences for future flight operations around Reagan National Airport.