Former Facebook employee speaks to CNN

02 Sophie Zhang Facebook whistleblower Donie O'Sullivan interview SCREENSHOT

Former Facebook employee speaks to CNN

A former Facebook employee was hired to find fake accounts, but says what she found was far more concerning. CNN's Donie O'Sullivan reports.

04:03 - Source: CNN

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02 Sophie Zhang Facebook whistleblower Donie O'Sullivan interview SCREENSHOT

Former Facebook employee speaks to CNN

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