[Out_of_Characte]

We already have 70 years experience of marine nuclear reactors. Most of them highly enriched uranium or plutonium.

Submarines for electrolysis of water into breathable oxygen and electrical power for propulsion and aircraft carriers for its massive power density.

On the other hand, we have 0 years of operational experience with fusion reactors. We have 0 energy positive land based designs, 0 marine adaptations. We have discovered exactly 0 benefits of fusion reactor designs over fission. and I'm certain that we'll have more than 100 years of experience in commercial fission operation before we even have a single decade of net positive fusion energy.

Highly dangerous? Absolutely, but the giant weapons attached to these nuclear marine reactors have killed far more people than those reactors. Hell, those aircraft carriers experience more radiation from coal power plants than their own reactor. And I'm not kidding.