Mine Explosion

February 28, 2013 - 1:29 PM
FILE -In this Thursday, July 22, 2010 file photo, Chairman and Chief Executive Officer of Massey Energy Company Don Blankenship speaks at the National Press Club in Washington. David Hughart, a former president of a Massey Energy subsidiary implicated the company's chief executive officer in safety violations as he pleaded guilty Thursday, Feb. 28, 2013, to charges resulting from an investigation into the 2010 explosion at a Massey mine that killed 29 men. The CEO at the time, Don Blankenship, was not mentioned by name. (AP Photo/Jacquelyn Martin, File)