Detailed text transcripts for TV channel - MSNBC - 20100514:00:12:00
Service, mr. mason, thank you for joining us. >> thank you, keith. >> explain briefly how a blowout preventer works and what testing tells them before you install them. >> well, a blowout preventer works in two different ways. one, to shear the well off if the primary way doesn't work, which is to seal the pipe off. to test the bops it's what they call an integrity test to see if they hold up to the pressures. >> so what exactly is the claim you've made about the testing that bp and its contractors have done on the blowout preventers? >> well, when they test the bops they're supposed to hold e...
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