President Trump has promised to help America’s soya bean farmers, who have found themselves caught in the middle of the US-China trade war. But will his help be enough?

Also: an ice-cream maker in Philadelphia exports his product to China, for people with expensive tastes; a newcomer to Mexico City learns that quesadillas don’t always come with cheese; two entrepreneurs take Korean-Mexican fusion cuisine to Seoul; plus we remember restaurant critic Jonathan Gold and the effect he had on food culture in Los Angeles.

(Image: Corn and soya beans grow on a farm near Tipton, Iowa. Credit: Scott Olson/Getty Images)

Did Donald Trump commit treason in Helsinki? Legal experts weigh in on the “T” word.

Also: we learn all about Russia’s GRU, the country’s largest military intelligence agency; we remember Malaysia Airlines flight MH17 four years after it was shot down over eastern Ukraine; we meet Crimean families who have been displaced after Russia’s annexation of the peninsula; and finally Alina Simone, a Russian immigrant living in New York, explains why she has given up on teaching her daughter Russian.

(Image: US President Donald Trump and Russia's President Vladimir Putin attend a joint press conference in Helsinki. Credit: Getty Images)

One in six Americans is affected by infertility, according to a recent study by the American Society for Reproductive Medicine. The US has legal commercial surrogacy programmes, but they can cost more than $100,000, so some couples are looking abroad.

This week, we explore the global surrogacy industry by travelling to Ukraine, which has become the go-to spot for foreign couples seeking surrogates, and then to India, where commercial surrogacy may soon be banned.

(Image: Kateryna (not her real name) lives in a rural village in Ukraine. She decided to become a surrogate so she could get ahead and earn extra money. Credit: Anastasia Vlasova/PRI’s The World)

Michael McFaul, a former US ambassador to Russia, gives his take on the upcoming Trump-Putin summit.

Also: we meet indigenous language interpreters helping migrants detained on the US-Mexico border make their cases for asylum; we look at global projects to combat loneliness, from dance parties in the Netherlands, to a newspaper for people cut off from society in Japan, to new research being conducted in Utah. We close out with a love song composed by a whale. Yes, for real.

(Image: Russia's President Vladimir Putin (L) and US President Donald Trump in Vietnam on November 11, 2017. Credit: Russian Presidential Press and Information Office/Handout/Getty Images)

I was just really happy,” says The New York Times en Español editor Paulina Chavira, “I was crying because it was a victory for me.” She convinced Mexico's national football team to add accent marks to their jerseys.

Also: migrant workers are already building football stadiums in Qatar for the World Cup in 2022; a Pakistani woman created a board game to take on arranged marriage; a Jeopardy! winner has mixed feelings about her victory; and we listen to World Cup themed music from Colombia.

(Image: Fans of Mexico celebrate during the 2018 FIFA World Cup Russia group F match between Mexico and Sweden at Ekaterinburg Arena on June 27, 2018 in Yekaterinburg, Russia. Credit: Carlos Cuin/Getty Images)

There is nothing special about the building at 606 South Olive Street in Los Angeles. But if you're an immigrant fighting deportation, what happens inside is all-important.

Also: we hear about a child who was separated from his family and put in US immigration detention… in 1930; we meet a feisty Peruvian potato farmer facing down an American mining company; we learn about a proposal to legalise divorce in the Philippines; and we rock out to an Arabic remix of the Beatles song “Drive My Car”, to mark the end of the women's driving ban in Saudi Arabia.

(Image: The building that houses the US immigration court in Los Angeles, one of 57 such courthouses in the country. Credit: Saul Gonzalez)

“What I remember about my dad is that he had this penetrating smile.”

We recall the life of Tony Acevedo; from child of unauthorised immigrants from Mexico, to US soldier in WWII, to concentration camp survivor, to inspirational father.

Also: the daughter of an American spy reveals secrets about her childhood; a father remembers telling his children that he was going to be deported; Vincenzo Bruno, an activist in Costa Rica, comes out as transgender to his son; and Tami Neilson closes out the programme with her song “The First Man.’’

(Image: Tony Acevedo at the United States Holocaust Memorial Museum's 20th Anniversary Tribute event in Los Angeles, February 2013. Credit: Courtesy of The United States Holocaust Memorial Museum)

): Young Navajo in the southwest grapple with a traumatic chapter in US history.

''Nobody shares these stories with me, and I don’t understand why I feel the way I feel. I want to know what happened.''

We learn how the story of the 1864 Long Walk slipped from US history; we dig into the legacy of the Chinese Exclusion Act; a House for Sale sign appears in France and brings back a flood of memories for a New Jersey real estate agent; a museum holds writing workshops for Holocaust survivors; and jazz musician Guillermo Nojechowicz sets his family’s immigrant story to music.

(Image: “The Long Walk was a huge initiative undertaken by Kit Carson and his team of various military branches,” Vanessa Roanhorse explains, “to round up as many Navajos as they could, and force them on this walk.” Credit: Warren Montoya)

Bananas and foreign travel: What it means to be a computer hacker in North Korea.

In North Korea’s spy agency, operatives aren’t just trained to gather intel. They also hack banks. We hear from a couple of North defectors about what it’s actually like to be a government hacker.

Also on the programme: we meet a robot assistant breaking down gender stereotypes; we get to the bottom of a robocall scam; we check our own voicemail box for messages from our listeners; and we visit a restaurant where the chefs are robots.

(Image: North Korea's leader Kim Jong-un waves from a car on April 27, 2018. Credit: AFP/Getty Images)

North Korea’s cyber-hackers have raked in millions of dollars.