Answer: They would seize it because it's RAW, not because it's radioactive.
After all, it is the FDA that has long supported the mass irradiation of the food supply as a way to sterilize it and "kill pathogens." The food irradiation agenda has long been a top priority of the FDA (http://www.naturalnews.com/023015_food_foods_USDA.html). Meanwhile, the FDA has been a steady enemy of raw milk (and other raw foods).
Even today, when you buy almonds grown in California, they must be fumigated or irradiated in order to comply with California state law (which was supported by the USDA and applauded by the FDA). (http://www.naturalnews.com/021989.html)
Perhaps the Fukushima nuclear power plant has a future after all: Instead of producing power, it can function as an FDA-approved food irradiation center where fresh, raw foods are exposed to radiation to make them "safe" for public consumption.
Does your doctorwant to irradiate your thyroid gland?