Wed, 12/13/2023 - 10:53 Tech Insider Economy Politics Economy Federal Trade Commission Chair Lina Khan prepares to testify before the House Judiciary Committee in the Rayburn House Office Building on Capitol Hill on July 13, 2023 in Washington, DC.Chip Somodevilla/Getty Images Tags economy, politics, economy, car-shopping, hidden-fees, junk-fees, new-cars, car-ownership, car-dealer, car-dealership, FTC Source Americans could save $3.4 billion through a new rule preventing 'exploitative' …