Fact-check: Does Turkey's purchase of Russia S-400s really threaten NATO jets?

stlbeacon.org - 11/30/2019

Turkey activated its Russian-made S-400 missile defence system this week, bringing the drawn-out dispute between Ankara and Washington to a head. The United States has long argued that Turkey's purchase of Russia's S-400 missile defence system may allow Moscow to obtain intelligence on US-made F-35 jets employed by NATO, of which Turkey is a member.

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