Detailed text transcripts for TV channel - CNN - 20100809:03:32:00
At this point. i think that's why there's a basis for optimism moving forward. >> so you think it's sealed? >> well, it needs to be sealed from the bottom. we've sealed the casing pipe from the top. we need to drill into the area outside the casing pipe and well bore and do that with the relief well. that will be happening this week. >> i want to play you some sort of things from april and june when we were trying to get a grip on what you were dealing with here. >> it has involved into an environmental challenge of the first order. >> already this oil spill is the worst environmental disaster...