WASHINGTON – CIA Director John Ratcliffe informed skeptical U.S. lawmakers that recent military actions have severely impaired Iran’s only metal conversion facility. This event marks a significant blow to Tehran’s nuclear ambitions, potentially delaying their progress by several years, according to a U.S. official on Sunday.

This official, requesting anonymity due to the sensitive nature of the information, mentioned that Ratcliffe emphasized the pivotal impacts of these strikes during a confidential briefing with U.S. legislators last week.

News about these discreet discussions emerged as President Donald Trump and his administration continued to counter inquiries from Democratic lawmakers and others, concerning the actual extent of Iran’s setback following the strikes, particularly before the ceasefire with Israel was initiated last Tuesday.

“It was obliterating like nobody’s ever seen before,” Trump said in an interview on Fox News Channel’s “Sunday Morning Futures.” ”And that meant the end to their nuclear ambitions, at least for a period of time.”

Ratcliffe also told lawmakers that the intelligence community assessed the vast majority of Iran’s amassed enriched uranium likely remains buried under the rubble at Isfahan and Fordo, two of the three key nuclear facilities targeted by U.S. strikes.

But even if the uranium remains intact, the loss of its metal conversion facility effectively has taken away Tehran’s ability to build a bomb for years to come, the official said.

Rafael Grossi, head of the International Atomic Energy Agency, said Sunday on CBS’ “Face the Nation” that the three Iranian sites with “capabilities in terms of treatment, conversion and enrichment of uranium have been destroyed to an important degree.”

But, he added, “some is still standing” and that because capabilities remain, “if they so wish, they will be able to start doing this again.” He said assessing the full damage comes down to Iran allowing in inspectors.

“Frankly speaking, one cannot claim that everything has disappeared, and there is nothing there,” Grossi said.

Trump has insisted from just hours after three key targets were struck by U.S. bunker-buster bombs and Tomahawk missiles that Iran’s nuclear program was “obliterated.”

His defense secretary, Pete Hegseth, has said they were “destroyed.” A preliminary report issued by the U.S. Defense Intelligence Agency, meanwhile, said the strikes did significant damage to the Fordo, Natanz and Isfahan sites, but did not totally destroy the facilities.

As a result of Israeli and U.S. strikes, Grossi says that “it is clear that there has been severe damage, but it’s not total damage.” Israel claims it has set back Iran’s nuclear program by “many years.”

The metal conversion facility that Ratcliffe said was destroyed was located at the Isfahan nuclear facility. The process of transforming enriched uranium gas into dense metal, or metallization, is a key step in building the explosive core of a bomb.

Secretary of State Marco Rubio in comments at the NATO summit last week also suggested that it was likely the U.S. strikes had destroyed the metal conversion facility.

“You can’t do a nuclear weapon without a conversion facility,” Rubio said. “We can’t even find where it is, where it used to be on the map. You can’t even find where it used to be because the whole thing is just blackened out. It’s gone. It’s wiped out.”

The CIA director also stressed to lawmakers during the congressional briefing that Iran’s air defense was shattered during the 12-day assault. As a result, any attempt by Iran to rebuild its nuclear program could now easily be thwarted by Israeli strikes that Iran currently has little wherewithal to defend against, the official said.

Ratcliffe’s briefing to lawmakers on the U.S. findings appeared to mesh with some of Israeli officials’ battle damage assessments.

Israeli officials have determined that Iran’s ability to enrich uranium to a weapons-grade level was neutralized for a prolonged period, according to a senior Israeli military official who was not authorized to talk publicly about the matter.

Tehran’s nuclear program also was significantly damaged by the strikes killing key scientists, damage to Iran’s missile production industry and the battering of Iran’s aerial defense system, according to the Israeli’s assessment.

Grossi, and some Democrats, note that Iran still has the know-how.

“You cannot undo the knowledge that you have or the capacities that you have,” Grossi said, emphasizing the need to come to a diplomatic deal on the country’s nuclear program.

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AP writer Sam Mednick in Tel Aviv, Israel, contributed to this report.