District Court Judge Aleta Trauger this week said a class action accusing Wal-Mart Stores of paying its female employees less than their male coworkers can't proceed because it was filed too late. Attorneys for the plaintiffs say they will take their case to the Sixth Circuit Court of Appeals. The women had sued Wal-Mart last fall after the U.S. Supreme Court in 2011 said a national discrimination case could not move forward.