Passengers wait in a security line at Washington's Ronald Reagan National Airport in Washington, Friday, May 13, 2016.
Passengers wait in a security line at Washington's Ronald Reagan National Airport in Washington, Friday, May 13, 2016. Sait Serkan Gurbuz AP
Passengers wait in a security line at Washington's Ronald Reagan National Airport in Washington, Friday, May 13, 2016. Sait Serkan Gurbuz AP