Officials want to permanently keep helicopters away from commercial jets taking off and landing at a busy Washington, D.C., airport after the deadliest U.S. aviation accident in more than two decades.

As the investigation into the Potomac River catastrophe continues, there are growing calls to restrict the number of aircraft flying through that space — specifically helicopter traffic. Those who spend any amount of time around Reagan National Airport — flying in or out or just being around the airport — know the amount of air traffic with planes and