06/22/2010 11:33 pm ET Updated May 25, 2011

Upper Big Branch Mine Disaster: Massey Sues Mine Safety Regulator For Allegedly Violating Its Constitutional Rights

Massey Energy Co. sued the federal Mine Safety and Health Administration and three of its officials Tuesday, arguing that the agency wouldn't approve ventilation practices in its mines that Massey says would have benefited the safety and health of miners.

The company, which is being investigated by the MSHA following an April explosion that killed 29 miners at its Upper Big Branch Mine in Montcoal, W.Va., said it couldn't challenge the MSHA's ventilation-plan requirements under federal mine law. Massey said that violated its constitutional rights.

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