Detailed text transcripts for TV channel - MSNBC - 20100408:01:19:00
Ground around coal seams. if there's a certain amount of methane gas in the air, between 5% and 15%, it's very, very explosive. so if you're mining coal, it's really, really, really important that you take measures to get methane gas away from what you're doing. to keep the levels of methane gas inside the mine at very, very low levels. because otherwise, naturally, methane builds up, explosions can happen very easily, and people can very easily be killed. in montcoal, virginia, this week, 25 miners died. another four are still unaccounted for after an explosion at the upper big branch mine. t...