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President Obama speaks during a "Moving America Forward" rally at Cleveland State University in Ohio on Sunday. Jewel Samad/AFP/Getty Images hide caption

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Jewel Samad/AFP/Getty Images

Peter Diamond, a Massachusetts Institute of Technology economics professor, beams during a Cambridge, Mass., news conference shortly after he won the 2010 Nobel Prize in economics on Oct. 11. Stephan Savoia/AP hide caption

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Stephan Savoia/AP

Jon Stewart and Stephen Colbert address thousands gathered for The Rally to Restore Sanity and/or Fear on the National Mall in Washington on Saturday. Saul Loeb/AFP/Getty Images hide caption

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Saul Loeb/AFP/Getty Images

Cargo planes sit on the tarmac of Dubai airport Saturday, the day after a parcel bomb was intercepted in Dubai on a cargo plane originating from Yemen. Karim Sahib/AFP/Getty Images hide caption

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Karim Sahib/AFP/Getty Images

Lynda Lovejoy waves to the crowd during the Navajo Nation Fair parade in Window Rock, Ariz., on Sept. 11. Lovejoy is seeking to become the tribe's first female president. Felicia Fonseca/AP hide caption

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Felicia Fonseca/AP