Not really, while yes any nuclear reactor could in theory be used to produce weapons grade material, in practice designs optimized for plutonium breeding are ra

Not really, while yes any nuclear reactor could in theory be used to produce weapons grade material, in practice designs optimized for plutonium breeding are radically different from power generating plants. Further, you don't need nuclear reactors for weapons material production, you can just enrich uranium. In fact, enriching uranium in sufficient quantity for reactors actually requires significantly larger and more expensive set ups than would be needed for weapons production. There might be some small states that want to disguise their weapons programs as peaceful power generation programs, but for countries like China and the US which are already well known to possess such weapons, there's really no incentive.