LOS ANGELES - At 12:30 ET today, OUR Walmart members, some of whom were part of the first Walmart strike in October 2012, have just sat down near registers and next to racks of a Walmart store in Crenshaw near here. The group of striking workers, from stores throughout California, has placed tape over their mouths signifying the company's illegal efforts to silence workers who are calling for better jobs. Even as the mega-retailer brings in $16 billion inannual profits and Walmart's owners build on their $150 billion in wealth, the majority of Walmart workers are paid less than $25,000 a year.