Full Story Was Iran really building a nuclear weapon?
Mar 15, 2026
Kelsey Davenport, director of non‑proliferation policy at the Arms Control Association and an expert on Iran's nuclear program, breaks down technical and policy realities. She discusses civilian versus weapons capabilities, whether inspectors ever saw a weapons decision, the effects of strikes on sites, risks around enriched uranium, and how war could change Iran's choices.
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Iran Kept A Weapons Option While Building Civil Nuclear Skill
- Iran pursued civil nuclear capabilities while developing enrichment and plutonium-separation skills that could be repurposed for weapons.
- Kelsey Davenport traces an organized weapons effort emerging during the Iran–Iraq war and continuing until about 2003 when Iran appears to have halted that organized program.
Technical Threshold Does Not Prove Intent To Weaponize
- Iran had technical capabilities near the threshold of producing a weapon but lacked evidence of a political decision to weaponize.
- Davenport notes inspectors and intelligence saw the means but not an organized program or intent to build bombs.
60% Enriched Uranium Is Dangerous But Not Weapon-Ready
- Iran's 60% enriched uranium could be used for a bomb but requires conversion to metal and far more material than 90% fuel.
- The 60% is mainly gaseous, stored for centrifuge use, making weaponization technically harder and bulky.