Russia's Federal Security Service reportedly suspects that plans for two of Russia's new, game-changing hypersonic missiles have been leaked to Western spies.

Russia's Ministry of Defense on July 19, 2018, released new footage of two of its most revolutionary weapons systems: a hypersonic Kh-47M2 "Kinzhal" nuclear-capable, anti-surface missile and the Avangard, a maneuverable ballistic missile reentry vehicle specifically made to outfox the US missile defenses arrayed around Europe.

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The Federal Security Service, known as the FSB, now suspects these systems, each of which cope with the challenges of flight at about 10 times the speed of sound, have been leaked to the West. "It was established that the leak came from TsNIIMash employees," a source close to the FSB investigation told Russia's Kommersant newspaper, as the BBC noted. TsNIIMash is a Russian state-owned defense and space company. "A lot of heads will roll, and for sure this case won't end just with a few dismissals," the source said.