This week, Facebook handed over 3,000 Russian-linked ads to congressional investigators. The ads give just a glimpse into the scope of Russian meddling in the presidential election. Facebook has characterized the ads as appearing to amplify racial and social divisions. Now The Washington Post has a story about how Russian operatives used a sophisticated Facebook advertising tool to identify and target voters. For more, Marketplace’s Adriene Hill spoke with Craig Timberg, the Post’s national technology reporter.

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