US-Iran Nuclear Deal Needs Iran's Post-Strike Baseline
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- The US and Iran signed a memorandum of understanding last week, followed by first high-level talks in Switzerland over the weekend, creating a framework with political oversight, technical working groups, a Strait of Hormuz communication line, and a Lebanon deconfliction cell.
- The IAEA's last verified estimate, from June 13, 2025, put Iran's stockpile at 440.9 kilograms of uranium enriched up to 60 percent — but it remains unclear how much survived the June 2025 US and Israeli strikes at Natanz, Fordow, and Isfahan or where material is now located.
- Vice President JD Vance announced Iran "agreed to invite IAEA inspectors back into their country," calling it a "major milestone," and Trump posted on Truth Social about "Major Weapons Inspections" — but Iran's foreign ministry rejected the claims, saying no new access to damaged sites has been granted.
- IAEA Director-General Rafael Grossi broke his public silence Wednesday, saying inspections under the memorandum are expected to take place even as Washington and Tehran publicly disagree over what Iran has accepted.
- There is no agreed position on the future of Iran's enrichment program: Trump has signaled conditional acceptance while reported US calls for a long moratorium clash with Iran's proposals for a shorter pause, with discussion deferred to a final deal.
- The credibility obstacle centers on US constancy, not Iranian reliability — Washington withdrew from a verified 2015 deal, reimposed heavy sanctions, and then went to war, showing Tehran that compliance buys little if US commitments expire with an administration.
- Verification will require comprehensive IAEA access to bombed sites and any locations where enriched material or key equipment may have been moved, including centrifuge manufacturing workshops, potentially using remote sensors, robotics, or small drones for unsafe or inaccessible areas.
Why it matters: The memorandum's central promise — freezing Iran's nuclear program in exchange for economic relief — cannot be verified without a new IAEA baseline establishing the size, composition, and location of Iran's uranium stockpile, which has not been independently confirmed since June 13, 2025. With no agreed position on enrichment, disputed claims about inspector access, and the same credibility gap that killed the 2015 deal now threatening delivery of promised economic relief, the talks' outcome depends on technical teams resolving what high-level diplomacy left undefined.
