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They are fine as long as you have the money and expertise to store nuclear waste securely for hundreds of years.
Apparently France changing to nuclear was a major advance in the global fight against climate change.
I read recently a (Finnish? Swedish?) proposal to bury nuclear waste deep underground. Oil and gas companies have the expertise to reach thousands of meters underground, and they could deposit depleted uranium rods (within their respective lead containers etc etc) within those shafts. They would be more easily secured that way, and would be available if technology were developed allowing us to make use of the material.
They are fine as long as you have the money and expertise to store nuclear waste securely for hundreds of years.