Pilots who land at Reagan National face a unique set of complications, including short runways, scores of helicopters and a mountain-size no-fly zone.

The Federal Aviation Administration will restrict helicopter traffic around Washington, D.C.'s Ronald Reagan Washington National Airport after the fatal collision of Army Black Hawk helicopter with an American Airlines jetliner earlier this week,

The Army identifiies two soldiers aboard the Black Hawk that collided midair with American Airlines plane on Wednesday. Third soldier's ID being held.