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Now Playing: 10-16-12 Marketplace

Citigroup announced today that its CEO has resigned effective immediately, leaving the company in a questionable position. Japan is about to overtake China in the amount of U.S. debt that it holds. Gallup Editor-in-Chief Frank Newport talks about how the town hall participants are chosen for the presidential debate. Levi’s is putting a new spin on recycling -- the company plans to take millions of plastic bottles and turn them into jeans. And author Frederick Kaufman discusses how Wall Street speculation affects the price of food.