A deadly midair collision between an American Airlines jet and an Army helicopter near the nation's capital is bringing renewed focus on the federal agency charged with investigating aviation ...

The NTSB is an independent federal agency responsible for investigating all civil aviation accidents as well as serious incidents in the U.S. involving other modes of transportation, such as railroad ...

National Transportation Safety Board holds news conference on deadly DC aircraft crash National Transportation Safety Board holds news conference on deadly DC aircraft crash. ––– Subscribe to ABC News ...