[UPDATE, Dec. 22, 2016: The U.S. Department of Justice last month filed a petition for a rehearing. It said the appeals court's reversal relied on "the mistaken belief that [antitrust] principles cannot properly account for the interdependence" of the two sides of Amex's platform, merchants and cardholders. Several parties have since filed amicus briefs.]
[UPDATE, Sept. 26, 2016: A U.S. appeals court reversed a district court's ruling that had found American Express' anti-steering clauses illegal. "This means consumers will be able to choose how they pay and . . .