The National Transportation Safety Board is “urgently” recommending that the Federal Aviation Administration “permanently” prohibit helicopter air traffic during certain times around Ronald Reagan National Airport in response to January’s midair collision involving a passenger jet and military helicopter.

The transportation secretary’s decision came after the National Transportation Safety Board cited a long history of near collisions between helicopters and airplanes near the nation’s capital.

There's an "intolerable risk to aviation safety" with helicopters and planes flying too close to each other near DCA.