A bombing attempt on a trans-Atlantic flight has raised new questions about counter-terrorism and air security. The PBS NewsHour asked experts to answer the question: Where should the U.S. focus its efforts to keep up with air security threats?…

The Federal Aviation Administration has unveiled a new air traffic control system, ADS-B, that incorporates the Global Positioning System to more accurately track airplanes in flight. Tom Bearden examines ADS-B, which the FAA has promised will make air travel safer…