Chevy Cobalts on the assembly line in Ohio in 2008. Documents show General Motors was aware of problems with the car's ignition switch years before, but failed to act. Ron Schwane/AP hide caption

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Soldiers participate in physical therapy while using a prosthetic brace called the Intrepid Dynamic Exoskeletal Orthosis (IDEO), which allows them to use and strengthen severely injured legs. John Moore/Getty Images hide caption

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Marijuana plants grow at a farm near Medellin. Tony Dokoupil's father made hundreds of thousands of dollars smuggling marijuana into the U.S. from Colombia. Raul Arboleda/AFP/Getty Images hide caption

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Riot police faced off with protesters Sunday, during a demonstration against recent police shootings in Albuquerque, N.M. The march lasted at least nine hours. Russell Contreras/AP hide caption

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In New Hampshire, where the Affordable Care Act remains unpopular, the state has exceeded expectations for insurance enrollments. Credit goes, in part, to a grass-roots campaign to sign people up. Brian Snyder/Reuters /Landov hide caption

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