surface. should there be unfortunate collapse they will be able to keep whoever is in that capsule alive in theory. there is a harness there so the miners will be strapped into the capsule just in case somebody faints. imagine coming up through this. if they faint, they should be able to live through it the escape shaft itself is 24 inches, 2 feet across. and there is a metal casing used to stop the walls from caving. in each of those -- or the capsule itself 13 feet tall. and it weighs 926 pounds. so almost half a ton. and that capsule will take four to five people down to help them and 33 miners, in theory back to the surface. and we should have all of that done by this time tomorrow. dr. coomer is with us from the medical a team. there is a lots of things to worry about these folks. what is the first thing you have to worry about. >> sending down the navy marine