The U.S. Supreme Court on June 25 handed down a decision in the case of Ohio v. American Express, ruling that American Express did not violate the Sherman Antitrust Act. The decision comes after a long battle that started in 2010 when the U.S. Department of Justice (DOJ), in conjunction with several state attorneys general, brought the case against Visa, Mastercard and American Express arguing that the rules promulgated by the card networks preventing merchants from offering discounts were a violation of antitrust laws. More