Exactly! Most all of these concepts do not have proliferation risks. And many can destroy weapons material. However, these groups have to be careful about what

Exactly! Most all of these concepts do not have proliferation risks. And many can destroy weapons material. However, these groups have to be careful about what they can do with the fuel cycle. Transatomic gets a lot of press, but their technology has glaring holes. They cannot burn waste well at all. You have to have fast neutrons and only fast neutrons to do that. Their claim of a dual spectrum is a brush over of this issue. The thermal neutrons account for 95% of reactions and thermal neutrons have a tendency to transmute fissile actinides into higher and higher transuranic actinides until you have so much stuff like Pu-240 and Cm-244 that you cannot continue the chain reaction. TAP only gets an extra 30 MWD/kg out of spent fuel at most before their salt saturates with too many non-fissile actinides so the reaction cannot continue. Compare this to a fast reactor that can get 200-700 MWD/kg. There are salt designs that can do this, but not this one.