seven days from now, the entire replacement will be done. once they finish unbolting the flange, they go into a process where they take the actual permanent seal, the capping stack, and it's a complicated maneuver. you'll see a lot of activity by the underwater robot on the sea floor. you can see a lot of activity in the coming days. it's going to be crucial. >> vivian, i'm probably asking dumb dumb questions. it's confusing to me given i haven't seen this process happen before. few of us have. when we say the removing of the six bolts would take until tomorrow, why are we seeing at the top portion of this image, what appears to be free flowing oil? something has been removed, correct? in attempt to remove the bolts?