In the Supreme Court of the United States: Visa Inc., et al., Petitioners v. Sam Osborn, et al., and Visa Inc., et al., Petitioners v. Mary Stoumbos, et al., On Writ of Certiorari To the United States Court of Appeals For the District of Columbia Circuit

Brief For the United States (Department of Justice and Federal Trade Commission) As Amicus Curiae Supporting Respondents, Arguing That Respondents' United States District Court Complaints Adequately Allege That the Access Fee Rules Imposed by Visa and MasterCard - Governing the Fees That Competing Banks Charge In Their Separate Businesses -- Constitute Concerted Action Subject to Section 1 of the Sherman Act