The stunning details Steve Witkoff revealed about his talks with Iran and their boastful comments about its nuclear program have apparently fallen on deaf ears at the UN nuclear agency.
Days after the joint US-Israeli campaign against Iran, International Atomic Energy Agency (IAEA) Director General Rafael Grossi posted to X: “There is no evidence that Iran is building a nuclear bomb.”
Witkoff revealed that negotiators said they had an “inalienable right” to enrich uranium. When Witkoff responded that the Trump administration had the “inalienable right to stop [them, ]He explained that the negotiators said this was just their starting point.
“They have about 10,000 kilograms of fissile material that has been broken down into about 460 kilograms of 60% enriched uranium, and another 1,000 kilograms of 20% enriched uranium,” Witkoff explains. “They manufacture their own centrifuges to enrich this material, so they are almost unstoppable. They have an endless supply of it. The 60% material can be brought to 90% in about a week – that’s weapons grade – on the outside maybe ten days. The 20% can be brought to weapons grade in three to four weeks.”
Witkoff added that in his first meeting with negotiators, they said “without shame that they had 460 kilograms of 60% in their hands and they are aware that that could make 11 nuclear bombs, and that was the beginning of this negotiating position.”
“They were proud of it. They were proud that they had evaded all kinds of surveillance protocols to get to a place where they could deliver 11 nuclear bombs,” Witkoff said.
US Special Envoy Steve Witkoff arrives at his hotel during a new round of talks between the United States and Iran on Iran’s nuclear program, in Geneva on February 26, 2026. (Fabrice COFFRINI/AFP via Getty Image)
However, Grossi, who is running to become the next secretary general of the United Nations, admitted in his post on With these facts in mind, he said the IAEA “will not be able to provide assurance that Iran’s nuclear program is exclusively peaceful” until Iran “helps … resolve the outstanding security issues.”
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The former Trump administration official said: “Some important facts are being ignored today. The IAEA Board determined last year that Iran is in violation of the NPT. To this day, Grossi has confirmed that the IAEA cannot verify that Iran’s nuclear program is peaceful.”
He continued: “This is not Iraq where we lacked hard public evidence of a nuclear weapons program. Iran had expanded almost every element of its nuclear weapons program in plain sight, while weapons work advanced at undeclared sites controlled by the SPND. When the government had evidence, the regime moved quickly to reassemble key elements of that program – from advanced centrifuge production to the completion of a new underground enrichment site in addition to the advancement of delivery vehicle programs – the president had every right to enforce a red line he set after Operation Midnight.”

Faragasso said questions remain about whether the Iranians have access to their enriched materials, and whether they have additional centrifuges that may not be installed in the affected facilities.
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“Being able to enrich the uranium to weapons grade is actually a tall order,” he said, explaining that this would require a new enrichment site as well as components and materials that “Iran would have to recover from its destroyed facilities” or “illegally import them from abroad.” With a few hundred centrifuges, enough for two or three cascades, the Iranians could have enriched their uranium supplies to weapons grade, according to Faragasso.
“To be clear, the successes achieved with the June War are not permanent and regime officials were talking publicly about how they wanted to reconstitute their enrichment program, their nuclear program,” he said. “The longer that goes on, the worse the situation will become. It won’t get better, especially when it comes to the ballistic missile program.”

Satellite images taken on January 30, 2026 show a new roof over a previously destroyed building at the Natanz nuclear site. (2026 PLANET LABS PBC/handout via REUTERS)
He said the Iranians had previously expressed a desire to open a fourth enrichment site, which the IAEA said was in Esfahan. According to Faragasso, there was “never confirmation” of where the location was or how far along construction had been.
The group is now following an Israeli attack on March 3 on Min-Zadayi, a site that Faragasso said was previously “completely unknown” to them. The Israeli military reported on X that the site “was used by a group of nuclear scientists operating to develop a key component for nuclear weapons.”
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“This terrorist, radical, cleric-led regime should never have nuclear weapons.” Rubio explained that the Islamic Republic was “prepared to slaughter their own people in the streets” and instructed the press to “imagine what they would do to us.” Imagine what they would do to others. That will never, ever happen under President Trump,” he said.



