If it had only been a Wal-Mart

About a dozen Costco employees are credited with helping pull injured Metrolink passengers from the train wreck in Glendale on Tuesday. Wal-Mart, the other big warehouse store, has been struggling to improve its image, especially in California where it has been the subject of great criticism. Can't you just hear the boardroom conversation in Bentonville: "Why can't we get a massive train wreck outside one of our stores?"