In an ABC Radio interview, Blaise Misztal discussed the Turkish government's decision to buy Russia's S-400 surface-to-air missiles and what it could mean for Turkey鈥檚 role in NATO and relationship with the U.S.
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The P4 laboratory, on the campus of the Wuhan Institute of Virology, in Wuhan, in China's central Hubei province. (Hector Retamal/AFP via Getty Images)