tweaked since september 11th. things like this, much less than this or similar than this happen quite regularly. this is a good drill for them to get in there and run it. the hardest problem now is getting people out of there. we get an enormous response because we might need it. >> you touched on this a moment ago, how do you get your guys and the gals up to the 51st floor? you got a crashed helicopter. how do you put this fire out? >> well, they've got ways, at the trade center the lines were severed. you have five safety directors. they know whether the roof has been penetrated. i'm sure they gave guys the information they could use on the upper floors. sometimes you can't. so if the sand pipes are there,