The only way to ensure that a civil uranium enrichment program remains strictly civil is via transparency and monitoring. A country that has mastered uranium enrichment technology for fueling civil power reactors could use the same technology to produce bomb-grade uranium. It actually takes more work to enrich natural uranium into fuel for power reactors than it takes to further enrich power reactor fuel into bomb material:

https://scipython.com/blog/uranium-enrichment-and-the-separa...

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pkoiralap 3 days ago | parent [-]

This is scary. so the extra effort to move from, say, 20% to 85% is relatively small compared with the effort to get up to 20% in the first place. Might as well build a feature into the reactor so that it only works with <=20%

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ivanjermakov 3 days ago | parent [-]

> Might as well build a feature into the reactor so that it only works with <=20%

How would this help? Nuclear power plant and enrichment facility are separate entities.

	▲	pkoiralap 2 days ago \| parent [-]
		I think two reasons. If reactors can't function above 20%, a country having access to >20% enriched payload is a certain violation. Vs "60% enrichment is still for clean energy, my reactor works with it". 2. If you are only buying the payload and not enriching it yourself, you can't do anything with >20% . More like mixing methyl alcohol in lab available ethyl alcohol, to deter lab techs from mixing water and having a rager.