My answer about thorium reactors was too terse, apologies.
Thorium reactors would produce fissile 233U, not Pu. Though, they would demand some Pu to attain criticity, which 233U can't replace, so thorium reactors could not replace uranium reactors, nor could thorium deposits replace uranium ore.
No thorium reactor has ever run. India makes big efforts but has abandoned the hope of fuel regeneration - the reactors would make some use of thorium when consuming plutonium.
Such a reactor would be a big military concern, as it would be a plutonium core creating neutrons, and thorium blankets to be converted by the neutrons. Two 233U bombs were already detonated, but the real worry is that the user can use natural uranium as the blankets instead, and obtain military-grade plutonium easily.
To keep running uranium reactors, burn the plutonium, and make some use of thorium ore, one can just put plutonium-thorium in some fuel rods of a standard uranium-water reactor. It's done at the VVER. No need to develop a thorium reactor for that goal.