https://www.reuters.com/article/us-eu-antitrust-data/eu-may-need-to-regulate-tech-giants-data-use-eu-antitrust-chief-idUSKCN1VY1GU >The European Union may impose rules to ensure companies that collect data do not misuse it, Europe's antitrust chief said on Friday, signaling how she could use her expanded powers to rein in U.S. tech firms like Facebook and Google.