Topic: Larry Grayson
US issues emergency order to suppress coal dust blasts. Probes of the Upper Big Branch coal mining disaster, which killed 29 people in April, are focusing on coal dust as the likely culprit.
09/24/2010 09:11 pm
Mine rescue chambers have been required since 2006, even though federal authorities could have required them as far back as 1969. But it's still unclear whether miners in this week's explosion in West Virginia could have reached the chambers.
04/09/2010 08:55 pm