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A Malaysian investigator takes a black box from Malaysia Airlines Flight 17 as it is handed over from Donetsk People's Republic officials to Malaysian representatives in the city of Donetsk, eastern Ukraine Tuesday, July 22, 2014. Bowing to international pressure Monday, pro-Moscow separatists released a train packed with bodies and handed over the black boxes from the downed Malaysia Airlines plane, four days after it plunged into rebel-held eastern Ukraine.
A Malaysian investigator takes a black box from Malaysia Airlines Flight 17 as it is handed over from Donetsk People's Republic officials to Malaysian representatives in the city of Donetsk, eastern Ukraine Tuesday, July 22, 2014. Bowing to international pressure Monday, pro-Moscow separatists released a train packed with bodies and handed over the black boxes from the downed Malaysia Airlines plane, four days after it plunged into rebel-held eastern Ukraine.

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Russia: 'It wasn't our missiles'

Russia denies that one of its missiles brought down MH17 and offers an alternative explanation for the crash.

Russia: 'It wasn't our missiles'

Russia denies that one of its missiles brought down MH17 and offers an alternative explanation for the crash.