Gordon Carrera

But I think it's worth saying that they certainly are developing those kinds of missiles, but that is different from actually having worked out how to build a nuclear warhead and put a nuclear warhead on a missile.

So they are not at that stage, despite the fact they've certainly got a pretty extensive missile program, which also poses a pretty big challenge if you're trying to destroy the capability to deliver something.

Still doing it, yeah.

Which was the last year's operation, last summer's operation.

That's right.

There's two different types of uranium, 235, 238.

You want the more fissile material, so you need to enrich it to increase the amount of the fissile material, which naturally is at only 0.7%.

You get it to 3% to 5%.

I remember all this from previous episodes.

You've got enough for fuel.

But once you get above that, you can claim it's for research.

Yeah, it's research for a bomb.

But you need to get up to 90%, really, for a weapon.

As we said, I think last time, the hard work is at the early stages.

And the more, if you like, of the highly enriched uranium you've got, the easier it is to remove the less highly enriched and to enrich it further.

So it gets easier the higher you go up the scale.

So 440 kilograms of 60% enriched uranium is technically enough for, I think, 9 to 10 nuclear weapons, maybe, something like that.

It's a significant amount.

We're going to be coming back to that 440 kilograms because it isn't the entirety of the Iranian nuclear program, but it feels like that's where the political debate is centered, is on that material and what has happened to that material.

We know about that from the last time it was inspected from the IAEA, which was actually quite a few years ago, I think 2022, 2023.