Howard Berkes Howard Berkes is a correspondent for the NPR Investigations Unit.

Clay Mullins (left), brother of mine disaster victim Rex Mullins, listens as Upper Big Branch miner Stanley "Goose" Stewart tells the House Education and Labor Committee that the mine "was a ticking time bomb" because of problems with ventilation and explosive methane and coal dust. Jon C. Hancock/AP hide caption

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Jon C. Hancock/AP

Mine Victims' Families Recall Fear, Safety Issues

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Mine workers stand at the entrance of the Upper Big Branch coal mine on April 9, a few days after an explosion killed 29 men. Matt Sullivan/Getty Images hide caption

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Matt Sullivan/Getty Images

Mine Probe Examines Airflow, Possible Tampering

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Massey, Federal Officials Investigated In Mine Blast

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Mine Owner, Safety Agency Face Federal Inquiry

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FBI Probing U.S. Officials And Massey, Owner Of W. Va. Mine Where 29 Died

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Wall Street Still Bullish On Massey Despite Mine Blast

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The Legacy Of Ex-IOC Chief Samaranch

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Samaranch, 89, Reshaped Face Of Modern Olympics

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