Americans United for Change isn't the first advocacy group to accuse Wall Street's denizens of swinish behavior. But before the group started buying 30-second cable spots, the accusation hadn't been so literal.

Against a sound track of banjos and grunting, a pair of pigs bearing Bank of America Corp. and JPMorgan Chase & Co. logos root around for spilled corn. A porker branded with Citigroup Inc.'s logo has its snout and front feet immersed in the bailout slop bucket. Yet another, representing Goldman Sachs & Co., looms over a smaller pig and looks mildly supercilious.

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