The reason there is no plan of safe disposal and that we don't do what every other Nuclear naton does: reprocess spent fuel ad infinitum, is that we are planning to put this spent fuel into Nuclear weapons [some day]. Get it?
I disagree. There is no value in storing tons of dangerous material just in case the nation might someday want to make a bomb out of it. I would have to bet against that train of thought being prominent in government. Every existing nuclear power plant will have spent rods already waiting in the cooling tank that can be extracted for that purpose. Stockpiling more intentionally is risky and unnecessary. My opinion only.