Sunday marks one year since Malaysia Airlines Flight 370 disappeared, with 239 people aboard. The anniversary has put pressure on the airline industry to show how plane tracking technology has improved since.
The so far fruitless search for the Boeing 777-200, which lost contact with air traffic control about 40 minutes after departing Kuala Lumpur, has been a constant reminder of inadequate tracking. How could a 330-ton aircraft simply vanish?
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