https://www.reuters.com/article/us-tech-antitrust-facebook-factbox/factbox-lawsuits-pile-up-as-u-s-tackles-big-techs-market-dominance-idUSKBN28J2XR >The U.S. Federal Trade Commission and a big coalition of U.S. states sued Facebook Inc on Wednesday, saying that it broke antitrust law and should potentially be broken up. Facebook is the second big tech company to face a major legal antitrust challenge this fall.