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Facebook CEO and founder Mark Zuckerberg testifies during a US House Committee on Energy and Commerce hearing about Facebook on Capitol Hill in Washington, DC, April 11, 2018. / AFP PHOTO / SAUL LOEB        (Photo credit should read SAUL LOEB/AFP/Getty Images)
Facebook CEO and founder Mark Zuckerberg testifies during a US House Committee on Energy and Commerce hearing about Facebook on Capitol Hill in Washington, DC, April 11, 2018. / AFP PHOTO / SAUL LOEB        (Photo credit should read SAUL LOEB/AFP/Getty Images)

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    Takeaways from Mark Zuckerberg's testimony

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Takeaways from Mark Zuckerberg's testimony

Cambridge Analytica whistleblower Chris Wylie and sociology professor Zeynep Tufekci react to Mark Zuckerberg's second day of questioning on Capitol Hill.

Takeaways from Mark Zuckerberg's testimony

Cambridge Analytica whistleblower Chris Wylie and sociology professor Zeynep Tufekci react to Mark Zuckerberg's second day of questioning on Capitol Hill.