It?s really the systematic approach that?s been taken.

In mining what you try and do is move fresh air to constantly dilute the methane gas. Methane is a potential fuel for an explosion in a mine. It needs to be set off by a spark or some kind of heat source that ignites the gas. Also, in coal mines you have coal dust created by grinding of the coal. There are other things. That coal dust is also potentially explosive.

The mining industry is big where you are, but it's very small when it comes to buying power. It's difficult to compete with manufacturers when those markets are huge.

Technically, that's a ways off. The realistic thing to do now is to harden the systems we do have, protecting them from a fall of ground or a fire.

They may be related. We don't know that for sure. Things have been tense over there for a long time.

They're not going to tell. They'd rather retaliate.