Hello. Today we go in search of a pioneering DJ who played for the displaced workers of the Chernobyl disaster 40 years ago.

On the Iranian border, we catch a glimpse of how attitudes are shifting towards the war, as uncertainty grows over

prospects for peace. In Kenya, we hear how farmers are dealing with months of drought, while not yet

recovered from the last one, and we find ourselves among the armadillo's capybara's and

Palo Baracho trees of Paraguay's Gran Chaco. But first to Pakistan,

which has embraced its role as mediator in talks between Iran and the US. The nuclear power is

perhaps not the most likely candidate to have stepped into this role with its fragile economy,

on and off conflicts with its own neighbours, and

history of sectarian tensions. But as other governments have faltered, it seized the opportunity,

having secured the trust of both the US and Iran. Caroline Davis has watched the events unfold

in Islamabad. It was the tearing echo of the fighter jets that was the concrete sign.

There were arrivals.

For weeks Islamabad had been waiting, whispers that Pakistan was involved in running a back channel,

escalated to a crescendo of anticipation that the US and Iran could meet in the capital.

Behind the scenes, it spring

garden parties, as the jaccaranda trees blossomed, diplomats, journalists, analysts, former

military officers and other onlookers would swing wildly from complete conviction to dismissive

skepticism, asking one another, but what do we know? The answer was for a while very little. Hence, suggestions,

reassurances that this was not just city gossip. Islamabad has rarely been at the heart of international

diplomacy on this scale, nor with such high stakes. Pakistan shares a border with Iran. The two

countries call each other brotherly nations.

There are historic, cultural and importantly religious ties. Pakistan has the second highest

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