John Simpson, in discussion with the BBC’s unparalleled range of experts across the world, examines the factors behind the latest resignation of a British prime minister, explores the state of US politics and society on the eve of the country’s 250th birthday, and analyses the results of the Colombian presidential election.

Producer: Kate Cornell Executive producer: Benedick Watt Commissioning editors: Silvia Costeloe and Paul Royall

The shop workers union USDAW says the filming of retail staff by customers for social media has become increasingly common, with concerns about videos being uploaded without workers' consent. The issue is highlighted by the experience of a shop worker who appeared in content created by former television presenter Michael Barrymore, now a social media creator with millions of followers across TikTok and YouTube. Jayne Allport, National Officer at USDAW, outlines the union's concerns. The resignation of Sir Keir Starmer has intensified scrutiny of Labour's relationship with the media, with attention turning to Andy Burnham as a potential future leader. Burnham's years as Mayor of Greater Manchester have provided a public record of his dealings with journalists. Joshi Herrmann, founder and editor of The Mill, reflects on Burnham's approach to media engagement. Online romance fraud continues to affect victims around the world, with organised groups in Nigeria responsible for many high-profile scams. A new book traces the origins and evolution of the so-called Yahoo Boys, named after an early generation of fraudsters who relied on Yahoo email accounts. Carlos Barragán, a New York Times reporter, recounts his reporting from Lagos. BBC Radio 4 Long Wave closes this month, bringing to an end a century of long-wave broadcasting in the UK. The network's transmitters at Droitwich, Westerglen and Burghead are due to cease operation as listening habits continue to shift towards digital platforms. Jeffrey Borinsky, broadcasting historian, reflects on the history and legacy of Long Wave radio.

Production team Presenters: Katie Razzall and Ros Atkins Producer: Lisa Jenkinson Content Producer: Lucy Wai Apprentice researcher: Cameron Taylor Technical Coordinator: Luke Sweeney Sound: Mark Pickett

Caitríona Perry is joined by White House reporter Bernd Buzman and CBS News political director Fin Gomez to unpack the memorandum of understanding with Iran, signed with a flourish by President Trump before G7 leaders at Versailles. With a 60-day clock now running toward bigger talks, they ask what America has actually gained — given the Strait of Hormuz was open and petrol cheaper before Operation Epic Fury began.

The team digs into the unresolved nuclear question, the daunting task of diluting Iran's enriched uranium on a timeline that took the Obama administration 20 months, and the politics driving it all: JD Vance positioning himself as the face of the deal, midterm pressures and an uneasy MAGA base.

They also weigh a renewed push on Ukraine, rumours swirling around Cuba, and a strikingly public rift between Trump and Netanyahu. Could the flashpoint in Lebanon yet unravel the whole Iran deal?