No Cause for Celebration

Students at the University of Iowa filled the center of the campus with hundreds of red and white balloons early one morning last month, but they weren't preparing for a party.

Instead, members of Students Against Sweatshops planted the decorations to protest the university's vending contract with Coca-Cola, which they accused of human-rights violations. But just hours into the stunt, administrators threatened disciplinary action, saying the protest constituted "solicitation without

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