On television, Wal-Mart employees are smiling women delighted with their jobs. But reality is another story. In 2000, Betty Dukes, a 52-year-old black woman in Pittsburg, California, became the lead plaintiff in Dukes v. Wal-Mart Stores, a class action representing 1.4 million women. In an explosive investigation of this historic lawsuit, journalist Liza Featherstone reveals how Wal-Mart, a self-styled "family-oriented," Christian company:...