For weeks, Malaysian authorities reported the final words from Flight 370's co-pilot to air traffic controllers was "All right, goodnight." That is a non-standard sign-off, and it raised serious questions about what may have been happening inside the cockpit. Now officials are revising what was said in the final transmission to "Good night Malaysian three seven zero" which is more routine. Anderson gets the latest developments from Kyung Lah in Australia and Nic Robertson in Kuala Lumpur.
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