By the way, to Today's credit: in the second half hour Lauer interviewed NBC reporter Bob Hager, at the scene. They agreed that it was premature to start pointing fingers at the mine owners, and important to let the investigations play out.
It seems to me that mining is an industry where safety violations are usually minor, widespread, and commonplace. In our law firm, we have a paper mill as a client, and they get 10 violations every time an inspector walks through the plant. But the 10 violations are extraordinarily minor, and the sum of the fine - if there is one at all - is rarely above $2,000. Rather, the safety inspections are just used as a way to check up on manufacturers, keep them on their toes, and make sure they're not doing any thing really stupid.