alt Hacker News> and the storage of the nuclear waste is very far from a solved engineering problem. Storing safely stuff for thousands of years is just not a realistic scenario whatsoever.
More of a political problem, from what I hear. This is, if anything, worse: simply not knowing is a research problem, but knowing how to do it and yet having an influential group saying "no because reasons" could be genuinely insurmountable.
My experience is that politicians tend to hand-wave this problem away, while physicists and geologists acknowledge the problem and actually think about it.
So imo not really a political problem.