Former President Bill Clinton speaks at Scranton High School on Tuesday at a rally for U.S. Senate candidate Joe Sestak in Pennsylvania. Jason Farmer/The Scranton Times-Tribune/AP hide caption

itoggle caption Jason Farmer/The Scranton Times-Tribune/AP

Nearly three-quarters of U.S. households completed the mail-in questionnaire for the 2010 census, says Commerce Secretary Gary Locke. hide caption

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