Outside intervention, of course, is no panacea. But the alternative is unchecked defiance, the best current example being Brian D'Arcy, head of the biggest union of L.A. Department of Water and Power (DWP) employees. For months, he has refused demands from city leaders, the courts and the media that he turn over financial documents on two nonprofits that received $40 million from ratepayers. Even as he stonewalled, Mr. D'Arcy served on the Los Angeles 2020 Commission, a group of distinguished L.A. citizens, as they issued a report complaining about a lack of accountability in city government. Did I mention that defiance is a close cousin of shamelessness?