Krieger22, on 02 March 2013 - 07:46, said:
In all fairness, I'm not sure how radioactive the leftover material will be, because I don't know what material they use for fuel to begin with. Being mixed with concrete and stuff like that would certainly stop certain types of radiation, but not all, and wouldn't completely eliminate the radiation either. You'd have to get a geiger counter and test it. Personally, I wouldn't go near it though.