Methane warnings ignored before NZ mine disaster

Associated Press
Methane warnings ignored before NZ mine disaster

FILE - In this Nov. 30, 2010 file photo, flames burn from a ventilation shaft above the Pike River mine which has fatally trapped 29 miners and contractors in Greymouth, New Zealand. New Zealand coal mining company Pike River Coal ignored 21 warnings that methane had accumulated to explosive levels before an explosion killed the 29 workers two years ago, an investigation released Monday, Nov. 5, 2012, concluded. (AP Photo/NZPA, Iain McGregor, File) NEW ZEALAND OUT

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