engineers will be putting a camera down that rescue shaft which is 28 inches wide as we know, and they will be checking what they call the integrity of that rescue shot. checking to see if the drill hole through that granite rock is solid enough or if there may be a risk of rock fall. if they think there is rock fall, a solution. put steel piping all the way down to the tunnel where the miners are and then once that is in place, then the rescue cage known as the phoenix capsule will be brought slowly to the surface with the miners onboard one by one. but that, if they decide to go for that option, that could take anything up to ten days before the miners are back here on the surface. but what engineers are hoping and a mining consultant i was speaking to this morning, he says he believes that the first 100 yards is the critical area of that rescue shaft. they might encase just 100 yards of this shaft and then drop the