This is the Global News Podcast from the BBC World Service.

I'm Nick Miles and in the early hours of Friday the 30th of August, these are our main stories.

The United Nations Nuclear Watchdog says Iran is now close to having enough weapons-grade uranium

for four atomic bombs. Israel and Hamas have agreed to a series of pauses in fighting

to allow hundreds of thousands of children in Gaza

to be vaccinated against polio. Also in this podcast we go on a voyage of

discovery on a riverbed.

I love finding keys because you instantly think what did that unlock?

This is a medieval key.

It's got this beautiful pattern.

This is a little bell.

No wonder mudlarking, an activity involving the scavenging of the

banks and shores of rivers for items of value, is becoming too popular for its own good.

A key reason why the current... for its own good.

A key reason why the current instability in the Middle East is so concerning is the prospect

of Iran becoming a nuclear power.

It's been six years since the United States pulled out of a deal that

reduced sanctions on Tehran in exchange for Iran agreeing to international nuclear

monitors visiting key sites. Earlier this week, Iran's supreme leader said he was not opposed to reopening talks with

the US.

Well, now it appears that were to Iran to agree to that it would be bargaining from a position of strength

and that's because the UN's nuclear watchdog, the IAEA, has just released some

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