At a "We Are One" union rally in New York City marking the 43rd anniversary of the assassination of Martin Luther King Jr., protesters called for workers' rights in light of recent "anti-union" legislation in Wisconsin and Ohio. Mario Tama/Getty Images hide caption

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People take a look at Mississippi River floodwaters at the base of Beale Street in Memphis, Tenn. Mark Humphrey/AP hide caption

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A Tea Party supporter, left, argues with a critic before a rally where former Alaska Gov. Sarah Palin spoke at the Wisconsin State Capitol in Madison on April 16. Darren Hauck/Getty Images hide caption

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A sign that reads "recall" hangs on a statue in front of the Wisconsin state Capitol last month in Madison. In the state Senate, as many as 16 senators — Republicans and Democrats alike — could face recall elections this year. Justin Sullivan/Getty Images hide caption

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Albert Stinson, 38, mentors 10 boys at Marshall High School, on Chicago's West Side. Most of them are affiliated with gangs and have criminal records — and are at serious risk for becoming victims of violence. Dianna Douglas/NPR hide caption

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Chicago Public Schools' Safe Passage program places adults along the routes students take to and from school to keep an eye out for trouble. David Gilkey/NPR hide caption

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Marcus Spies was shot while taking out the garbage. He lives in Roseland, a tough south side neighborhood where gang fights claim lives and wound many. Spies says that one of the gangs wanted him to join up, but he declined. He believes they shot him in retaliation. David Gilkey/NPR hide caption

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Over the weekend, tens of thousands of demonstrators in Madison, Wis., marched around the Capitol building, protesting the proposed budget repair bill. Scott Olson/Getty Images hide caption

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