Its terrain-following radar can be linked to the aircraft's autopilot - so the plane itself can follow the contours of the landscape at a height of just 100 ft (30 m).

BBC: News | In Depth | Military Fact Files

The FAA plans to have a system whereby each aircraft in free flight has a satellite-linked probe that tells the pilot if another aircraft is within 20 miles.

ECONOMIST: Clearing the skies | The

The safety board is the leading authority in the United States on aircraft safety investigations and is looking into the Boston fire, which preliminarily has been linked to a auxiliary battery system.

CNN: Dreamliner safety review: What it means for fliers