sets of nuclear material that we have to worry about. the nuclear material inside the reactors and the nuclear waste material which is in the cooling pool. this fire is in the cooling pool which you said already is not inside the containment structure which can deal with pressure and with shielding radiation. so the fear if this fire continues and continues to spew up a cloud of steam, that steam will contain particulate matter of items like eye -- iodine and -- these are materials which are highly radioactive. and so will be a continuing source of radio activity once they are deposited away from the site. and they will be contaminated the land around it the one thing to look for if they cannot get this fire under control by getting water on it, is to see