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FILE - This Jan. 17, 2017, file photo shows a Facebook logo displayed at a business gathering in Paris. The U.S. Justice Department has announced a major antitrust investigation into unnamed tech giants, while the House Judiciary Committee has begun an unprecedented antitrust probe into Google, Facebook, Amazon and Apple over their aggressive business practices, and promises "a top-to-bottom review of the market power held by giant tech platforms." (AP Photo/Thibault Camus, File)