"Liberals vs. the IRS"

http://online.wsj.com/news/articles/SB10001424052702303704304579382983945174994?mod=WSJ_Opinion_LEADTop

“By restricting the ability of 501(c)(4)s to engage in politics, the Administration hopes more groups will have to register as political committees instead of social-welfare groups and thus disclose their donors. The purpose of this disclosure is to set up donors as political targets for boycotts and intimidation so the costs of participating in politics will be too steep.”