An airplane flies past the air traffic control tower at Washington's Ronald Reagan National Airport, Monday, Aug. 10, 2015. In 2011, two airliners landed at Reagan National late at night without assistance from the airport’s control tower where the lone controller on duty had fallen asleep.
An airplane flies past the air traffic control tower at Washington's Ronald Reagan National Airport, Monday, Aug. 10, 2015. In 2011, two airliners landed at Reagan National late at night without assistance from the airport’s control tower where the lone controller on duty had fallen asleep. Jacquelyn Martin AP
An airplane flies past the air traffic control tower at Washington's Ronald Reagan National Airport, Monday, Aug. 10, 2015. In 2011, two airliners landed at Reagan National late at night without assistance from the airport’s control tower where the lone controller on duty had fallen asleep. Jacquelyn Martin AP

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