The Kremlin has admitted that Vadim Krasikov, a convicted killer released as part of the prisoner exchange with the US, was a Russian spy working for the FSB.

We'll hear from the investigator who first uncovered his identity and helped negotiate the deal: We will also get reaction from Washington and from a Russian politician loyal to Vladimir Putin.

Also in the programme: An exclusive interview with a high-ranking North Korean defector who tells us why Kim Jong-Un is hoping Donald Trump will be re-elected as president; and why there is controversy surrounding the women's boxing at the Olympics in Paris.

(Photo shows Russian citizens released after the Russian-US prisoner swap disembarking from a plane at Vnukovo International Airport in Moscow, Russia on 1 August 2024. Credit: Sergei Ilyin/Sputnik/Kremlin Pool via EPA)