I am strongly in favour of the argument that nuclear power is cleaner, and safer per unit watt-hour. However, what about nuclear weapons proliferation?

The popular light water reactor nuclear power stations use enriched uranium fuel, and these processes can be used to make nuclear weapons. Now it's certainly far from the truth all nations who have nuclear power will decide to build nuclear weapons, but I would think that most nations would have the potential of weapons at least partly in mind.