The process used to enrich uranium/plutonium for use in reactors is the same process used to enrich it for use in weapons, the difference is merely scope. The

The process used to enrich uranium/plutonium for use in reactors is the same process used to enrich it for use in weapons, the difference is merely scope. The "waste" from nuclear plants are also problematic. Plutonium can be obtained from spent fuel rods in a number of ways and it is easier to yield "weapons grade" enrichment levels with plutonium. Plus, once enough fuel has been accumulated, a breeder reactor can be set up to generate the necessary Pu238 & Pu239. This is something a nuclear power would want to do for legitimate purposes because plutonium yields are far higher than uranium. So in some ways, yes, nuclear reactors make it "that easy" to manufacture nuclear weapons. Especially plutonium-based weapons. There's still the work needed to create a weapon from the source material, but that's an easier problem to solve.