Crash investigators looking at altitude, communication and staffing before helicopter collision with plane
How an Army Black Hawk helicopter collided into an American Airlines jetliner in a deadly crash over the Potomac River ...
DC plane crash: Potomac River divers' search for bodies complicated by conditions out of their control
After an Army helicopter and American Airlines plane crashed into the Potomac River around Washington, D.C., a Virginia diver shared challenges of such a recovery effort.
Plane crash: What we know after American Airlines plane, Army helicopter crash into Potomac River
More than 30 bodies have been recovered, two sources told NBC News, and a frantic search and rescue mission to find crash ...