there are as many as 23,000 legacy mines in colorado alone. what the epa was doing and trying to clean up the mines and what they did is underestimated -- the contractor, at least, underestimated the amound of buildup behind and it apparently burst out. but what do you do about all of these mines as the epa's challenge and your challenge as governor is to see what pollution is behind some of these other old mines? >> well, of course, it's not 23,000, but it's certainly more than 20,000, probably more than 22,000. but 22,000, 23,000 abandoned mines. this was the legacy of the west. this is how the economy functioned a hundred years ago. and the vast majority of those old mines are just holes in the cliff wall or in the side of a hill and they're not a big problem. no more than just normal water runoff over a slope that's