Circuit City Stores Inc., the nation's second-biggest electronics retailer, filed for bankruptcy protection on Monday but plans to stay open for business as the busy holiday shopping season approaches. Report says that Circuit City also said it would cut 700 more jobs, after announcing a week ago that it would close 20 percent of its stores and lay off thousands of workers. Circuit City Stores Inc. announced a week ago it planned to close 155 of its more than 700 U.S. stores by Dec. 31. The stores are spread throughout 28 states, including multiple locations in areas like Phoenix and Atlanta. It is laying off about 17 percent of its domestic work force, which could affect up to 7,300 people.