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Now Playing: 05-08-12 Marketplace

China's government has forced popular news channel Al Jazeera English to close its only bureau in the country. London is preparing for the Olympic Games this summer by launching a series of exercises to test its readiness. Natural gas consumption in the U.S. is on the rise as energy producers are beginning to favor natural gas plants over coal. In the San Francisco Bay area, the small community of Hercules avoided bankruptcy by cutting its budget and staff nearly in half. And we hear about the economics of an autism diagnosis, and the natural history of breasts.