[pyuser583]

The US nuclear naval fleet isn’t a set of islands. The fuel must be mined and delivered.

The nuclear reactor have to be maintained and kept in dry dock, sometimes for years on end.

Nobody is afraid of aircraft carriers, even though they are powered by nuclear reactors.

[bobthepanda]

There aren’t that many naval submarine bases, and they’re not particularly close to most of the population.

Unfortunately, nuclear reactors need transmission lines to population centers, and we can’t just concentrate reactors into less than a dozen massive stations for the entire country.

[pyuser583]

Aircraft carriers also have nuclear reactors - and they are much less discreet than submarines.