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    Facebook doesn't know extent of Russian ads

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Facebook doesn't know extent of Russian ads

One week after Facebook admitted that it had sold $100,000 worth of ads to a Russian troll farm during the 2016 election, Facebook is still not sure whether pro-Kremlin groups may have made other ad buys intended to influence American politics that it simply hasn't discovered yet, sources with knowledge of the matter said. CNN's Drew Griffin reports.

Facebook doesn't know extent of Russian ads

One week after Facebook admitted that it had sold $100,000 worth of ads to a Russian troll farm during the 2016 election, Facebook is still not sure whether pro-Kremlin groups may have made other ad buys intended to influence American politics that it simply hasn't discovered yet, sources with knowledge of the matter said. CNN's Drew Griffin reports.