Facebook whistleblower Frances Haugen testifies before Senate Commerce consumer protection panel.
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Who is Frances Haugen, the whistleblower who is taking on Facebook?
On Sunday night, Haugen told 60 Minutes on Sunday night that she was the source of leaked documents to The Wall Street Journal and to lawmakers. It was the first time she spoke publicly.
Haugen is calling herself "an advocate for public oversight of social media." She has a new website, Twitter profile and Instagram account.
Her message: She wants to fix Facebook, not harm it.
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