FILE - In this April 11, 2018, file photo, Facebook CEO Mark Zuckerberg pauses while testifying before a House Energy and Commerce hearing on Capitol Hill in Washington about the use of Facebook data to target American voters in the 2016 election and data privacy. Zuckerberg said Facebook will start to emphasize new privacy-shielding messaging services, a shift apparently intended to blunt both criticism of the company's data handling and potential antitrust action. (AP Photo/Andrew Harnik, File)
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