'HALEU' type of Uranium and Weapons risk

Ed Lyman: Declassified cable reinforces proliferation concerns about

high-assay low-enriched uranium fuel. A recently declassified document from
nearly 50 years ago provides an important piece of the puzzle for
open-source researchers seeking to understand the murky origins of the
International Atomic Energy Agency (IAEA) system for safeguarding against
the diversion of civil nuclear materials for weapons. The document also
reinforces concerns about the proliferation potential of small modular
reactors that require fuels using uranium enriched from 10 to less than 20
percent uranium 235—that is, fuels that contain the material known as
high-assay low-enriched uranium (HALEU).

 Bulletin of Atomic Scientists 7th Nov 2025

 https://thebulletin.org/2025/11/declassified-cable-reinforces-proliferation-concerns-about-high-assay-low-enriched-uranium-fuel/