Disaster_Accident

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Colorado Avalanche goalie Semyon Varlamov (1) watches the puck bounce out of the net as Boston Bruins left wing Loui Eriksson (21) reacts to the goal scored by Carl Soderberg in the second period of an NHL hockey game in Denver on Friday, March 21, 2014.(AP Photo/Joe Mahoney)

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Colorado Avalanche left wing Jamie McGinn (11) collides with Boston Bruins left wing Brad Marchand (63) the first period of an NHL hockey game in Denver on Friday, March 21, 2014.(AP Photo/Joe Mahoney)

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Boston Bruins defenseman Kevan Miller (86) catches the puck as Colorado Avalanche center Maxime Talbot (25) hops toward it against Boston Bruins goalie Chad Johnson (30) the first period of an NHL hockey game in Denver on Friday, March 21, 2014.(AP Photo/Joe Mahoney)

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FILE - In a Wednesday, Feb. 5, 2014 file photo, Duke Energy engineers and contractors survey the site of a coal ash spill at the Dan River Power Plant in Eden, N.C., as state and federal environmental officials continued their investigations of the spill into the river. North Carolina regulators said Friday, March 21, 2014, that they have asked a judge to withdraw a proposed settlement that would have allowed Duke Energy to resolve environmental violations by paying a $99,000 fine with no requirement that the $50 billion company clean up its pollution. (AP Photo/Gerry Broome, File)