In this Sept. 24, 2003 photo, Betty Dukes, right, lead plaintiff in a potential class-action suit against Wal-Mart, poses with fellow plaintiffs shortly before a hearing in San Francisco. From right to left are Dukes, Patricia Surgenson, Stephanie Odle and Christine Kwapnoski. The suit alleges Wal-Mart discriminated against female employees. A divided federal appeals court in San Francisco says Wal-Mart Stores Inc. must face a massive class-action lawsuit that claims the world's largest private employer discriminates against women workers. The 6-5 ruling by the 9th Circuit U.S. Court of Appeals on Monday exposes the Bentonville, Ark.-based retailer to billions in damages if it loses the case at trial. The lawsuit was filed in 2001 and includes more than 1 million current and former workers.