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The midair collision that killed dozens of people over Washington, DC, is still being investigated. It’s the latest in a string of air accidents that, globally, have left several hundred dead.

The mid-air collision between an American Airlines regional jet and a U.S. Army helicopter near Washington’s Reagan National Airport was a shock to the nation. It may have been even more shocking because, over the last 25 years crashes involving U.S. commercial aircraft have been extremely rare.

Daniel Bubb, a commercial aviation expert, said it was hard to understand how the passenger jet and military aircraft collided near Reagan Airport. ‘It's a clear night. How can you not see the plane?,’ he asked.

Following a deadly crash between an airplane and an army helicopter in Washington D.C., there are new questions about the job of an air traffic controller. It’s considered one of the most stressful jobs according to Dan Bubb, an aviation expert and professor at 51�ԹϺ���.

Authorities are yet to determine what caused a collision between a US Military helicopter and a passenger jet over Washington DC. The crash is the worst air disaster in the United States for more than 20 years. An extensive search for bodies in the Potomac River continues after US officials confirmed there were no survivors

Aviation expert and former pilot Daniel Bubb says the collision between an army helicopter and the American Eagle jet is 'puzzling' and 'doesn't make sense'.

The investigation into Wednesday’s devastating crash between an American Airlines jet and an army helicopter in Washington, D.C is just beginning, but already, many are wondering about the role of air traffic control.

The airport can be a hassle even if you’ve been there a hundred times. From “gatexiety” to limited time for goodbye hugs to the fear of losing your luggage to worrying about wearing the “right” outfit for an efficient security experience, there are plenty of reasons you might feel stressed.