While thorium is easier to use efficiently than uranium (the LFTR on the page you linked is brilliant), I'd like to point out that we can use uranium orders of

While thorium is easier to use efficiently than uranium (the LFTR on the page you linked is brilliant), I'd like to point out that we can use uranium orders of magnitude more efficiently than we're using it now, by building breeder reactors like the Integral Fast Reactor or similar things. The big reason we're not is because we have plenty of uranium-235 right now; there's no compelling economic case for efficiency yet. The key thing to remember is that "nuclear waste" is just another way of saying "slightly used nuclear fuel", and by stockpiling it in dry cask storage, we're building up a huge fuel reserve for future generations.