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Now Playing: 06-12-13 Marketplace

Google, Microsoft and Facebook are calling on the U.S. government to reveal how often they get national security requests for information. The Internet companies are fighting the perception they were willing participants in the National Security Agency's widespread monitoring of electronic communications. Also, Pandora buys a small radio station South Dakota for what it hopes are big savings. And our "Consumed" series continues, as we delve deeper into the half-life of the consumer economy.