5% enrichment (regular reactor grade) is 2/3 the way to weapons grade already. https://world-nuclear.org/information-library/nuclear-fuel-cycle/conversion-enri

5% enrichment (regular reactor grade) is 2/3 the way to weapons grade already. https://world-nuclear.org/information-library/nuclear-fuel-cycle/conversion-enrichment-and-fabrication/uranium-enrichment https://world-nuclear.org/information-library/nuclear-fuel-c... Hence there technically being no enrichment cap for any country that signed the NPT and stuff (not to be confused with protection from US bombs or rogue states that never signed the NPT).