The Bush administration is renewing, or at least redoubling, its assault on labor. Now organized unions will face more audits, tougher scrutiny, and a host of other small obstacles and shackles meant to distract them from representing their workers. This, of course, comes on the heels of the NLRB's decision to focus on card checks -- the universally accepted way to form a union -- and the Bush administration's intervention against a California law barring employers from using taxpayer funds to run antiunion campaign. Sirota's got the story.