A question to the wise. I haven't come across this kindof accident before. Clearly it's a danger and is always why ventalation is key. What is the likely cause for this. Negligence on the part of the company, or something out of their control?
I know these companies always go out of their way to empasize their safety track record on their calls. I wonder what the worse case senario is in terms of mine shutdown while investigation takes place, and Fines--if the company is deemed to be negligent.
It goes without saying, it is tragic for the employees and their families.