At an April 25, 2010, service in Beckley, W. Va., for the 29 miners killed in the Upper Big Branch explosion, helmets — placed on crosses — were lined up in their honor. Jewel Samad /AFP/Getty Images hide caption

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Jewel Samad /AFP/Getty Images

Massey Mine Boss Charged In Deadly Coal Mine Explosion

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Internal Probe, Criminal Charges Still Pending In W.Va. Mine Disaster

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Mine helmets and painted crosses sat at the entrance to Massey Energy's Upper Big Branch coal mine on April 5, as a memorial to the 29 miners killed there one year earlier. Jeff Gentner/AP hide caption

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Jeff Gentner/AP

From NPR's Newscast

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