This week, Daniel Howes says federal authorities investigating alleged corruption inside the United Auto Workers are asking some of the same questions a U.S. Senate committee asked 60-plus years ago: are staff donations to their so-called “flower funds” voluntary? And have ranking union officials who control the funds pocketed some of the cash for their own use? If they did, it would confirm one of the worst suspicions on the factory floor: namely, that union leaders are more interested in enriching themselves than enriching members they purport to represent.