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What's the U.S. plan on Russia's "all out" invasion? Plus, a look at the strategy for fighting ISIS.
(CNN) - Malaysia Airlines Flight 370 likely flew into the southern Indian Ocean on autopilot with an unresponsive crew, Australian authorities said Thursday, divulging new details about what they believe happened during the missing plane's final hours.
The information emerged as officials announced a southward shift, as expected, in the underwater search for the Boeing 777, which disappeared March 8 with 239 people on board.