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Now Playing: 11-8-12 Marketplace

McDonald’s sales are down for the first time since 2003. AT&T has decided to scrap their landlines and invest in wireless services instead. Walmart is ramping things up for Black Friday especially early this year. Amy Scott talks to a teacher who taught high school at Chicago’s Cook County Jail. Germany houses about half of its gold in a vault beneath the Federal Reserve building, and some Germans are anxious to know if the gold is actually there. And China is going through a major leadership change.