unless you are exposed to radiation dust like in the immediate vicinity of the accident and that dust gets just mechanically off your clothes to somebody else, i think the only way that somebody could pass along internally deposited radiation as opposed to external radiation is if iodine 131 is ingested it can be excreted in the milk so for a nursing mother potentially who has ingested radioiodine it can go to the infant. that's the only way you can pass it along. >> you are the expert. i just need one or two questions now. it seems like we grew up in this country not worried about x-rays for example.