Some former workers met Thursday at the closed Pico Rivera Wal-Mart store to protest Wal-Mart Stores Inc. and repeated their assertion of poor treatment by filing a complaint with the National Labor Relations Board, the Los Angeles Times reports. The Pico Rivera store was closed in April for reported plumbing issues, although some workers believe the closure was retaliation for their campaigning for higher wages. The store is set to reopen in November.