In this frame grab taken from video provided by the New York Police Department, an unidentified man approaches New York City police officers with a hatchet, on Thursday. The man was fatally shot by police after he wounded two officers. AP hide caption

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Darius Clark Monroe, 33, and David Ned, 63, met while Monroe was working on a documentary about a robbery he committed in his teens. The film, Evolution of a Criminal, will air on PBS in January 2015. StoryCorps hide caption

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Rep. John Barrow speaks at First African Baptist Church in Dublin, Ga. Barrow needs African-Americans to turn out on Election Day, but they're not enough to put him over the top. Sarah McCammon/NPR hide caption

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Dontey Carter (from left), Mel Moffitt, Lenard Smith, Ned Alexander and Allen Frazier are all members of the Lost Voices group, formed after Michael Brown's death in August. They say they want to ensure justice for Michael Brown and other unarmed individuals killed by police officers. Cheryl Corley/NPR hide caption

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The Fairfax County 911 Center in Virginia takes calls during Hurricane Sandy in 2012. It was relatively easy to locate callers when most people used landlines. But most 911 calls now come from cellphones, which can pinpoint a callers' location only within 100 to 300 meters. Greg E. Mathieson Sr./Mai/Landov hide caption

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Jim Nepstad, superintendent of Effigy Mounds National Monument in northeast Iowa, stands at the top of a bluff looking over the Mississippi River. Clay Masters/NPR hide caption

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This encampment under the Julia Tuttle Causeway in Miami, shown in 2008, was cleared out by authorities in 2009. It was home to sex offenders who were unable to find places where they were permitted to live under Miami-Dade County's strict residency law. Although this makeshift community was broken up, homeless sex offenders continue to camp out in other areas of the county. David Adame/AP hide caption

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