Murals on display across the street from the Red Bull House of Art gallery in Detroit, Mich. After the largest municipal bankruptcy in U.S. history, Detroit hopes outsiders will focus on the city's potential, not the history of conflict and crisis that has cut its population in half since 1960. Joshua Lott/AFP/Getty Images hide caption

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David Letterman hosts his final Late Show episode on Wednesday. Jeffrey R. Staab/CBS hide caption

itoggle caption Jeffrey R. Staab/CBS

Men in hazardous materials suits load dead poultry to be buried at Rose Acre Farms Inc., just west of Winterset, Iowa, on May 11. John Gaps III/AP hide caption

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Clockwise from top left: Barclays, Citicorp, JPMorgan Chase and the Royal Bank of Scotland will pay billions in fines and plead guilty to criminally manipulating global currency market going back to 2007. The bank UBS AG (not pictured) has also agreed to plead guilty. Lefteris Pitarakis/Nick Ut/Kathy Willens/Matt Dunham/AP hide caption

itoggle caption Lefteris Pitarakis/Nick Ut/Kathy Willens/Matt Dunham/AP