TRANSCRIPT:
Days after the announcement of an Iran-Israel ceasefire - and the US strikes on Iran that preceded it - the answer to one question remains unclear.
How much was Iran's nuclear program set back by the damage from the US strikes?
A leaked early assessment from US intelligence came to a different conclusion from that reached by US President Donald Trump and the White House.
Instead of a setback of years, the leaked report said the timeframe was months.
Rafael Grossi is the director general of the UN’s nuclear monitoring group, the International Atomic Energy Agency - or I-A-E-A, which has been assessing Iran's compliance with the Non-Proliferation Treaty.
He told C-B-S, his view aligns with that of the US Defense Intelligence Agency.
"Describing this as a very serious level of damage. What happened in particular in Fordo, Natanz, Isfahan, where Iran used to have and still has, to some degree, capabilities in terms of treatment, conversion and enrichment of uranium have been destroyed to an important degree. Some is still standing. There is, of course, an important setback in terms of those of those capabilities. This is clear. And now the important issue - the important thing is - what are the next steps?"
Earlier this month, [[on June 12]], the agency formally declared Iran in breach of its non-proliferation obligations.
On the same day, Israel launched a military operation targeting Iran's nuclear sites, saying Iran must not be allowed the capacity to build a nuclear weapon.
In the aftermath, Iran's Supreme National Security Council has banned inspectors from the I-A-E-A, saying it wants assurances the country's nuclear facilities will not be attacked again.
Mr Grossi says it is important that the agency's inspectors continue to have access to monitor Iran's nuclear program.
"The work will have to continue. Otherwise, nobody will have an idea of what is happening in Iran. Iran will continue with a nuclear program - the contours of which are still to be seen. And will be - I am sure - part of this negotiations which I hope will be resuming soon."
After the leaked intelligence report, the US President spent the past week insisting the US strikes 'obliterated' Iran's three nuclear facilities, rendering long-term damage.
Now, he is taking a new approach.
He says his focus is finding out who leaked the intelligence report, which he called incomplete and biased.
Mr Trump told Fox News host Maria Bartiromo, his administration may prosecute journalists who don't give up their sources on the leaked report.
Maria Bartiromo: "The Democrats leaked intelligence - "
Donald Trump: "They should be prosecuted."
Maria Bartiromo: "Who specifically? Would you be able to find out..."
Donald Trump: "We can find out. We could find out easily. You could tell the reporter: national security. Who gave it? You have to do that. And I will suspect that we will be doing things like that."
The US and Israel have suggested that they would resume strikes on Iran, if Iran decides to rebuild its nuclear program.
The I-A-E-A says it has assessed that Iran possesses significant nuclear capabilities, but it has not found concrete evidence of a systematic effort to build a nuclear weapon.
The agency has found that - of the 30 countries capable of developing nuclear weapons, Israel is among nine that possess them [[along with Russia, the US, China, France, the UK, Pakistan, India, Israel and North Korea]].
Israel's government officially neither confirms nor denies the existence of its nuclear arsenal - but it is also among the countries that is not a signatory to the Nuclear Non-Proliferation Treaty [[along with North Korea, India, Pakistan and South Sudan]].
Iran maintains its nuclear program is for peaceful purposes only.
Iran's ambassador to the United Nations, Amir-Saeid Iravani, told C-B-S, the country's nuclear enrichment will never stop.
"To preserve our peaceful nuclear activity will remain always in a peaceful manner. So the enrichment is our right, an inalienable right, and we want to implement this right."
He says there has been no timeline established for the resumption of diplomatic talks with the US.
He says Iran is open to the idea, but it won't endorse the option of unconditional surrender.
Meanwhile, Qatar's Foreign Ministry spokesman says mediators are engaging with Israel and Hamas to build on momentum from the ceasefire with Iran - and work towards a truce in Gaza.
President Trump says it is possible a deal could be reached within a week.
"Often asked, and I think it's close. I just spoke with some of the people involved. And it's a terrible situation that's going… Gaza, he's asking about. And we think within the next week we're going to get a ceasefire. And we're supplying, as you know, a lot of money and a lot food to that area because we have to — I mean, you have to. We're, in theory, not involved in it, but we're involved because people are dying."
In follow-up posts on social media, US President Donald Trump repeated calls for parties to "make the deal in Gaza" and "get the hostages back".
An Israeli official says senior adviser Ron Dermer is set to travel to Washington this week for talks on a ceasefire, with plans for Israeli Prime Minister Benjamin Netanyahu to also visit in coming weeks.
Mr Netanyahu says defeating Hamas and the release of the remaining hostages is a central focus.
"Of course, we will also have to solve the Gaza issue, to defeat Hamas, and secure the release of the hostages. I believe we will achieve both tasks release of hostages, but beyond that, broad regional possibilities open up."
Twenty hostages remain in captivity in Gaza, while Hamas is also holding the bodies of 30 who have died.
Meanwhile, Israel has continued its deadly attacks in Gaza, issuing evacuation orders to those in the north of the enclave, covering the Jabalia area and most Gaza City districts.
In Gaza City, Sariah Badrah says an end to the 20-month war can't come soon enough.
"They want to destroy the square, so we fled, and our children are fleeing behind us. They are taking only a few things to get out of the house in the morning and at night, while the shells fall like rain. The F16s fire, the tanks fire and the drones attack. May God be with us."
The Gaza war began when Hamas launched a surprise attack on Israel on October 7, 2023, killing nearly 1,200 people, and taking 251 others hostage.
Since then, Israel's military assault in Gaza has killed at least 56,500 Palestinians.
