like this which is a hazmat suit, loops around the neck and then wearing a mask that says got a respirator that can help. it's hard to say how much risk they're at right now. there are certain levels going to be more risky than other levels. the thing about it is they're just not telling us those levels yet. we don't know. it's been speculation and sort of trying to figure out based on the levels outside what they must be inside. >> and so that's the immediate workers, the worker there is in the immediate vicinity. what about the difference of recommendation coming from the u.s. government telling citizens to stay 50 miles out before the japanese officials had been saying 20 miles out. look at the same data. this is part of what, you know, what we're dealing with here in some ways is unchartered territory.