A bilingual sign stands outside a polling center at a public library ahead of local elections on April 28 in Austin, Texas. John Moore/Getty Images hide caption

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Oxfam charity volunteers wear masks depicting G-8 leaders President Obama and German Chancellor Merkel around a large caldron to draw attention to the issue of world hunger in Northern Ireland on Sunday. G-8 leaders are gathering there for an annual summit. Peter Muhly/AFP/Getty Images hide caption

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Bruce Springsteen performs during halftime of the Super Bowl in Tampa, Fla., in 2009. In music, and increasingly in other industries, a relative handful of top performers take more and more of the spoils, says White House chief economist Alan Krueger. Mark J. Terrill/AP hide caption

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President Obama announces in the White House Rose Garden on Tuesday his nominations of (from left) Robert Wilkins, Cornelia Pillard and Patricia Millett to fill vacancies on the U.S. Court of Appeals for the District of Columbia. Mark Wilson/Getty Images hide caption

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