looking at, every bit of work they've been doing is back behind that relief well and when they went to the u.s. government and said here's how we'll kill it, the u.s. government came back to them and said that's great. we want to you drill two wells so if that first well doesn't work, they've got that second well ready to go. if that doesn't work, if there's some reason that they can't stop this well with cement, they've got that two other plans waiting in the wings. >> hate to sound negative but in the past -- is there reason to believe them now because in the past they've set expectations high and disappointed. >> reporter: they've had to learn every step of the way here because so much has never been done like this. they have in the past, however, done these relief wells and they have intersected other wells and capped them. we know they have done that in the past. they have confidence that that will work this time. but everything that we've seen so far, all of the failures, all of the attempts that have not gone through, this is all signs of a situation that no one has