you'll get this free information kit... and guide to understanding medicare, to help you choose the plan that's right for you. as with all medicare supplement plans, you can keep your own doctor and hospital that accepts medicare, get help paying for what medicare doesn't... and save up to thousands of dollars. call this toll-free number now. what started as six women taking on the world's largest retailer may now become the biggest sex discrimination lawsuit in u.s. history. the u.s. supreme court will decide whether the lawsuit should even be given class action status, allows as many as 1.6 million women to band together to sue walmart over pay and promotions. now, the court heard arguments from both sides today. sunny hostin is following this one and is on the case. sunny, what is the argument in favor of class action?