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Critic Warns: 'Look' At 9-9-9 Proposal's 'Numbers'

Herman Cain's 9-9-9 tax plan calls for a nine percent tax on what businesses make plus a nine percent tax on what individuals earn and an additional nine percent tax on what individuals spend. Cornell University economist Robert H. Frank, a critic of Cain's tax proposal, talks to Renee Montagne about the plan.