Chat with us in Facebook Messenger. Find out what's happening in the world as it unfolds.

This picture taken in Tangerang on March 18, 2013 shows a Malaysia Airlines Boeing 737 plane flying over the Sukarno-Hatta airport in Tangerang. Malaysia Airlines is the flag carrier of Malaysia and operates domestic and international flights from its home base in Kuala Lumpur and secondary hubs at Kota Kinabalu and Kuching. AFP PHOTO / ADEK BERRY (Photo credit should read ADEK BERRY/AFP/Getty Images)
This picture taken in Tangerang on March 18, 2013 shows a Malaysia Airlines Boeing 737 plane flying over the Sukarno-Hatta airport in Tangerang. Malaysia Airlines is the flag carrier of Malaysia and operates domestic and international flights from its home base in Kuala Lumpur and secondary hubs at Kota Kinabalu and Kuching. AFP PHOTO / ADEK BERRY (Photo credit should read ADEK BERRY/AFP/Getty Images)

    JUST WATCHED

    'Embarrassingly old math' behind find

MUST WATCH

'Embarrassingly old math' behind find

Chris McLaughlin, an executive at Inmarsat, explains to Amanpour how his company found where Flight 370 went down.

'Embarrassingly old math' behind find

Chris McLaughlin, an executive at Inmarsat, explains to Amanpour how his company found where Flight 370 went down.