is, you know, you have the roof blown off and that exposes the fuel but generally i guess the expectation is that you can keep filling up that pond with water, generally there is about at least 30 feet of water above those fuel rods and all of that acts as radiation shielding and cooling and the problem is as that water goes down, you're going to have a range of radiation risks and if there is a fire, you won't only get those gases, you'll have particulate matter and that's a very serious situation indeed. >> mr. gundersen, i want to try the best we can with the information we have to get this into context. we have the number 3 reactor damaged to the conment vessel, mixed signals as to how severe, reactor 2, at least a partial