Detailed text transcripts for TV channel - MSNBC - 20100409:04:39:00
The air in there is not breathable. what happens after this? >> the rescue teams took four breathing apparatuses with them. in the best scenario, we'll find four survivors. they're trained on how to get in the rescue chambers without allowing the outside air that isn't good in to the chamber. once they get in there, we know it's good air. we put the oxygen masks on the survivors and get out. that's another reason we like to see the air outside ventilated and we didn't use nitrogen. if the air outside is good, we'll walk you out of the chamber without any of the oxygen mask on. that didn't happ...