I believe that because the thorium is "burned" so effectively you don't see much in the way of U232 for the amount of energy output. I would be worried about a

I believe that because the thorium is "burned" so effectively you don't see much in the way of U232 for the amount of energy output. I would be worried about a plant that can make many kilograms of fissile material per year. I wouldn't be worried about a plant that can make many grams of fissile material per year.