American Airlines CRJ-700 collides with helicopter near Reagan National

Flying over the Potomac means any crash doesn't hit residential areas, unless they are unlucky enough to hit a bridge.

or a commercial airliner.

I get the need for air space protection. Totally. But i cant imagine this is the first time runway 33 was used for arriving aircraft. Dont know how common it is, but to have small/light aircraft ( Civil air patrol flights ) and helicopters operating in the same space as commercial air craft on approach ( and a commercial air craft on approach is throttled down and in landing configuration, so they cant maneuver in an instant without bad consequences ) will have to be addressed.