The article is completely wrong about US Navy ships having fusion reactors. They have fission reactors, not fusion. I wonder if they are even reporting the breakthrough right since they clearly don't know the difference. For all we know the breakthrough may be smaller fission reactors too, which isn't a big deal at all.
> U.S. submarines and aircraft carriers run on nuclear power, but they have large fission reactors on board that have to be replaced on a regular cycle.
