I'll bet no one else around here owns a calibrated radiation survey meter! I have posted this before, but it's worth repeating. A few months after the Fukushima meltdown, I took my survey meter to the grocery store. California veggies...fine. Fish display...fine. Canned tuna shelves....UH OH. I measured .05 rad/hour. That's over one rad/day. Since the tuna was in cans, the alpha and beta particles would not be detected, IIRC. If I remember my particle physics, my meter must have been detecting gammas or neutrons. If someone ingests the radioactive particles in the tuna, they will be irradiated from the...