addington, when we had mr. main here, i kind of said, this is shocking, this testimony to me, that these mines continue to stay open. and i say why can't you shut down a mine, or shut down part of the mine? he said, well, because of the federal mine safety and health review commission has made some rulings that made it hard to shut down. is that true in your experienced? >> well, it probably -- it's partly true in some respects. at the pattern of violations i don't believe that's true. if you look at section one '04, pattern of violation, the statute as it was intended, if you look at the legislative history, it really was intended to be a hammer. and unfortunately through implementing regulations in 1990, it was weakened and msha's internal criteria that they're using a week and it even more. i mean, we've heard a couple times during a hearing about potential pattern of violations. you won't find it in the statute. the statute nothing about potential violation that it says if a minor engaged in a pattern of vi