The union movement shows more of its clout this week when thousands of supporters of the Employee Free Choice Act are scheduled to rally on Capitol Hill... [B]usinesses see the bill as a threat to their drive to keep workers' wages low and weaken their clout in the workplace... This rally and the new ad campaign, though, have set of alarm bells in the business community. Take the hard-line posting on the National Association of Manufacturers' blog, Shopfloor headlined, "Card Check: A Rally and Introduction and the Big Lie Technique." [refers to Durham School Services]