IAEA Director General Rafael Grossi said "without verification, any agreement is not an agreement, but rather an illusion of agreement, or a promise that you don't know whether it will be kept"1. Iran holds 440.9 kg of 60%-enriched uranium as of approximately 23 April, enough fissile material for approximately ten weapons if further enriched. The International Atomic Energy Agency (IAEA) is the UN body responsible for nuclear safeguards under the Non-Proliferation Treaty.
The inspection blackout predates the three-phase Pakistan text. Iran terminated all IAEA cooperation following the Majlis 221-0 vote on 11 April; access was withdrawn on 28 February. The agency has had zero inspector visits to declared facilities for fifty-eight days as a result. Grossi's intervention places the verification problem ahead of any negotiated framework: even if Phase 3 of the Iranian text were lifted to the front of the queue, the agency cannot certify a freeze it cannot inspect.
The stockpile figure compounds the problem. 440.9 kg of 60% material is the threshold quantity for several weapons under standard IAEA significant-quantity definitions; the same uranium absent inspection becomes a Schrödinger's stockpile in any negotiated text. Washington's demand that Iran surrender the stockpile prior to negotiations is, in inspection terms, the only resolution that bypasses the IAEA. Iran's proposal to defer Phase 3 is, in those same terms, the only one that bypasses Washington. Grossi's third position holds that neither side's preferred sequencing fixes the verification gap.
