Christine Kwapnoski is seen at home in Bay Point, Calif., Thursday, March 17, 2011. Kwapnoski, an assistant manager with Sam's Club in Concord, Calif., is one of the named plaintiffs in a class action... more 
Christine Kwapnoski is seen at home in Bay Point, Calif., Thursday, March 17, 2011. Kwapnoski, an assistant manager with Sam's Club in Concord, Calif., is one of the named plaintiffs in a class action sex discrimination suit against Wal-Mart over pay and promotions. If the court approves, it would be the largest class action in U.S. history, affecting some 1.5 million. Arguments are Tuesday, March 29, 2011. (AP Photo) less 
1 / 1
Associated Press
Tue, Mar 29, 2011 6:29 PM EDT