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That's a hugely significant event, because before they had a cap on the well. they had it contained, and now they have this well completely under control. essentially killing this well and ending its threat. right now, they're monitoring it. they may have to adjust the amount of mud they have put in there, but right now they're also involved in conversations with government scientists about what to do next. perhaps they'll put a cement plug near the top of this well. in addition to the cement plug that they plan to put in at the bottom of the well later this month when that relief well is fini...

Leak and contain the oil is finally close to coming to an end. and we are very pleased with that. michelle franzen joins us from venice, louisiana. we just heard from admiral thad allen about the latest on killing this well. >> that's exactly right. >> that's exactly right. the static kill, describing it as the blownout well, now in static condition. they were able to pump the mud down there successfully, push the mud down in the reservoir, and they are now in control of the pressure of that well. they move on to what they're calling the bottom kill. that could be the final kill, the cement ...

Working right now where the pressure is at zero and they're able to maintain that and that's what they're going to monitor. a very small victory. not the end all. of course, the full kill, the final kill will take place hopefully and start that process in the next couple of days. that's in the relief wells that they created and they're hoping to put a cement plug in place hopefully by mid-august to finally put the final, the kill on this well. jeff? >> they're calling that the bottom kill. all right, nbc michelle franzen for us in louisiana. thanks. now, to the deadliest workplace shooting i...

Has to go through the relief well to get there for the bottom kill. officials said today drilling of the relief well will continue no matter what and they're still analyzing the results of pressure tests to determine whether they will then do that bottom kill or not, wolf. >> the pressure tests are really critical. they're crucial aren't they? that's right. there are risks associated with that bottom kill and those pressure tests will tell them whether doing the bottom kill would put too much pressure on the top of the well. and maybe undo the cement plug that's up here. if they do the bottom ...

Steven newman didn't answer. but in his testimony, he did dispute bp's accusation that the failure of transocean's blowout preventer caused the accident. and he repeatedly blasted the oil giant that's been his company's close partner saying bp was responsible for the work as operator of the rig. it came during questions about something that happened on the rig shortly before the explosion. according to accounts of rig workers in "the wall street journal," there was an anomaly. heavy drilling fluid was pumped into the well to stop gas from escaping. but then in an unusual move, the mud was move...