A network of high-tech eavesdropping and early-warning satellites operated by the Pentagon most likely played a key role in determining that the Malaysia Airlines Flight 17 was shot down by a Russian-made surface-to-air missile over the Ukraine.
According to a report by the Los Angeles Times, intelligence officials almost certainly relied on a technical discipline known as measurement and signature intelligence, also known as MASINT, to obtain key bits of information about the missile launch.






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