President Barack Obama heads over to greet people after arriving at Eastern Iowa Airport in Cedar Rapids, Iowa, Tuesday, July 10, 2012. (AP Photo/Susan Walsh)

Associated Press
President Barack Obama heads over to greet people after arriving at Eastern Iowa Airport in Cedar Rapids, Iowa, Tuesday, July 10, 2012. (AP Photo/Susan Walsh)
President Barack Obama heads over to greet people after arriving at Eastern Iowa Airport in Cedar Rapids, Iowa, Tuesday, July 10, 2012. (AP Photo/Susan Walsh)
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