The crash follows this week's collision of an American Airlines jet and a US Army Black Hawk helicopter over Washington DC which killed 67 in the nation's deadliest aviation disaster since 2001.
Prior to this week's fatal airplane crash in Washington, the US air traffic control (ATC) system was regarded as an understaffed operation beset with old and sometimes obsolete equipment.
Airline pilots flying into Washington, D.C., have reported nearly a dozen near misses that were scarily similar to this week’s midair collision that killed 67 people.