Weapon grade Plutonium is cheaper than weapon grade Uranium (source code)

= Weapon grade Plutonium is cheaper than weapon grade Uranium

Because you can generate <plutonium-239> from <uranium-238> in a <breeder reactor>, and then separate the <plutonium-239> from the <Uranium> simply by using <chemistry> methods because you've created an element with different valence electrons.

Isn't it somewhat funny that it is easier to purify a synthetic element than a naturally occurring one?