There is a potential gotcha: proliferation potential. The naval reactors use highly enriched uranium; if it falls in the wrong hands, you can end up with someone being able to build a bomb. That's why I said such a program needs to be run by the Department of Energy, the same department that has to maintain the nukes. I don't have a personal objection to this, but a lot of people would be unhappy with an essentially military program to be established for a problem that is not military in nature.