United States and Iran dispute Tehran's agreement to nuclear inspections

The United States and Iran are locked in a public dispute over whether Tehran agreed to allow international nuclear inspectors back into the country. On Monday, U.S. Vice President JD Vance announced that Iran had accepted IAEA access to nuclear sites bombed during last year's war — calling it a "major milestone" and "the first step in permanently denuclearizing Iran," according to South China Morning Post. Within hours, Iran's Foreign Ministry denied any such deal existed.
Iran's Foreign Ministry spokesperson Esmail Baghaei said U.N. inspectors are "not scheduled" to examine sites "bombed by the U.S. last year" and that Tehran has made no commitments beyond what already exists under the Nuclear Non-Proliferation Treaty, The Times of Israel reported. The contradictory statements threaten to collapse a fragile 60-day ceasefire window that both sides signed just days ago.
U.S. and Iranian negotiators met Sunday at the Burgenstock resort in Lake Lucerne, Switzerland. Vice President Vance led the American side. Iran sent Mohammad Bagher Ghalibaf. IAEA Director General Rafael Grossi was also present, though he has not confirmed that inspectors will return to the bombed sites, according to South China Morning Post.
President Trump posted on Truth Social that "everybody is fully aware that Iran will agree to Major Weapons Inspections." He warned he would "cut off talks immediately" if inspections are denied, but added there is "no rush" for them to begin, Forbes reported. Vance told reporters to "mistrust" Iranian denials appearing on social media, calling them a distraction from what he described as a genuine agreement.
The dispute traces back to June 2025. The U.S. and Israel struck Iran's nuclear enrichment facilities at Natanz, Fordo, and Isfahan during a 12-day air campaign. After the strikes, Iran suspended all cooperation with the IAEA, claiming international safeguards were "legally untenable" following the attacks, according to AP News.
The IAEA has not seen Iran's nuclear material since those strikes. Former U.S. Energy Secretary Ernest Moniz warned that any inspection deal must account for a full year of "dark" activity — meaning inspectors have no idea what happened to Iran's stockpile of 440 kilograms of uranium enriched to 60%, nearly enough for several nuclear devices, PBS NewsHour reported.
Iran blocked the Strait of Hormuz after the war began on February 28, 2025. Ship traffic has fallen sharply. Only 39 vessels crossed the strait on Monday, compared to an average of 100 ships per day before the war, according to LA Times. The International Maritime Organization is trying to evacuate 11,000 sailors stranded on ships inside the strait.
The 60-day interim agreement signed by both sides includes limited sanctions relief and allows Iran to sell some oil in exchange for diluting its enriched uranium stockpile. If the window expires without a final deal, the U.S. has threatened to impose "tolls" on the strait or resume military strikes, AP News reported. The Pentagon is separately asking Congress for $80 billion to backfill weapons used in the conflict.
Iranian President Masoud Pezeshkian flew to Islamabad on Tuesday to meet Pakistani Prime Minister Shehbaz Sharif. The trip was aimed at bringing in a mediator. Pezeshkian warned that any deal's success "depends on full commitment to the agreed obligations," according to AP News.
Back in Washington, the U.S. Senate voted for the tenth time on a War Powers Resolution to limit Trump's military actions in Iran. All previous attempts failed. But the $80 billion price tag is pushing more Republicans to reconsider their support, Las Vegas Sun reported. Wall Street reacted to the diplomatic uncertainty — the S&P 500 fell 1.4%, led by drops in Big Tech and AI stocks.
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