it. >> anything less than that, you know, might have led or probably led to a major failure of the well and the results are well known. >> back on board the deepwater horizon several weeks before the explosion, tyrone benton knew that the bop, blow-out preventer, was at possible risk for failure. >> and it was taken care of? >> it wasn't taken care of. in order for it to be taken care of, you need to pull the whole bop, which would shut down production. from my understanding, they shut down one pod and worked off the other. >> tyrone, 11 people dead. >> yes. >> for the better part of a day, the leak was studied, observed, measured. the most prudent course to fix it, says benton shall was ru, w. so, instead? >> they went ahead and shut down