Fatal crashes of commercial aircraft in the U.S. have become a rarity. The deadliest recent crash was in 2009 near Buffalo, N.Y. All 45 passengers and the four crew members were killed when the Bombardier DHC-8 propeller plane crashed into a house. One person on the ground also was killed.

Remains from all 67 victims of the midair collision over Washington, D.C., that sent an American Airlines regional plane and an Army Black Hawk helicopter crashing into the Potomac River have been recovered,