The current thought has been that civilian use and proliferation of fusion reactors is a positive thing for the US's security posture, since it opens up nuclear

The current thought has been that civilian use and proliferation of fusion reactors is a positive thing for the US's security posture, since it opens up nuclear power generation options without nuclear weapons proliferation concerns. Ie. it removes 'this fission reactor is just for power generation, totes not breeding plutonium, or using the centrifuges to develop a weapon' shtick you see from states wishing to become nuclear powers.