In this episode we’re tracing the route of a shadow ship. These ships are part of a network carrying Russian oil around the world - in violation of international sanctions. And some of them have been accused of sabotage, severing undersea cables that connect European countries. The “shadow fleet” is growing in size and posing a risk to other ships and the environment.

BBC journalist Emilia Jansson explains what shadow ships are and what some Scandinavian countries are trying to do about them. And we hear from BBC journalist Tim Whewell who travelled to the Laconian Sea, where shadow ships frequently carry out ship-to-ship transfers of cargo.

Instagram: @bbcwhatintheworld Email: [email protected] WhatsApp: +44 330 12 33 22 6 Presenter: William Lee Adams Producers: Emilia Jansson and Julia Ross-Roy Editor: Verity Wilde

Myanmar is reeling following a powerful earthquake on Friday. The epicentre was near the second largest city Mandalay, home to about 1.5 million people. According to the government, more than 2,000 people have been killed. The country is already in the midst of a worsening humanitarian crisis and civil war. It’s also ruled by a military junta who control almost all the media. We hear from Soe Win Than, the editor of the BBC’s Burmese service, about why it’s difficult to get all the information.

Tremors were also felt in Thailand - where thousands were evacuated from cracked buildings and at least 20 people have died.

Myanmar is considered one of the world’s most geologically active areas and prone to serious natural disasters. We speak to Stephen Hicks, a seismologist and research at University College London, about why earthquakes are so hard to predict.

Instagram: @bbcwhatintheworld Email: [email protected] WhatsApp: +44 0330 12 33 22 6 Presenter: Hannah Gelbart Producers: Emily Horler and Benita Barden Editor: Verity Wilde

US Vice-President JD Vance and his wife Usha are scheduled to land in Greenland on Friday afternoon. Their visit comes as President Donald Trump continues his threats to take over the world’s largest island, which is a semi-autonomous territory of Denmark. But the planned visit has been scaled back following protests. Rather than visiting a dog sled race and cultural sites, the Vances will instead tour an American space facility. BBC journalist Laura Gozzi explains the basics of what the United States would gain if Greenland became part of the U.S. And we also hear reaction from two 26-year-old Greenlanders, as we try to understand how local people feel about the latest developments.

Instagram: @bbcwhatintheworld Email: [email protected] WhatsApp: +44 0330 12 33 22 6 Presenter: Hannah Gelbart Producers: Mora Morrison and Elena Angelides Editor: Verity Wilde

The global hair wig and extension market was valued at $7.5billion in 2024. Hair is big business - especially in India, which is the world’s biggest exporter of human hair, supplying 85% of global demand. Some comes from temples, where people shave off their hair as an act of devotion to the gods. It is then sold at auction. The rest comes from hair pickers who collect it from women’s combs, salons and even rubbish dumps.

Priti Gupta, a journalist in Mumbai, talks us through the Indian hair industry. We ask why Indian hair is so sought after - and why it’s China that’s leading the wig export market, instead of India. BBC journalist Nadia Gyane explains where this hair ends up - and if customers know or care where their hair comes from? And drag artist Zeeshan Ali in Mumbai tells us why wigs are so important to their act.

Instagram: @bbcwhatintheworld Email: [email protected] WhatsApp: +44 330 12 33 22 6 Presenter: Hannah Gelbart Producers: Mora Morrison, Elena Angelides and Julia Ross-Roy Video Journalists: Baldeep Chahal and Kesewaa Browne Editor: Verity Wilde

Thousands of people in Turkey turned out for a seventh night of protests which have so far seen more than 1,400 people detained, including students, journalists and lawyers. Demonstrations began in Istanbul on 19 March, when the city's Mayor Ekrem Imamoglu - who is seen as President Recep Tayyip Erdogan's main political rival - was arrested on corruption charges.

In this episode we bring you the background to the protests. Nihan Kalle, a reporter for BBC Monitoring in Istanbul, tells us why President Erdogan is still popular after 22 years in power and why Ekrem Imamoglu is seen as a threat to him. BBC Turkish reporter Özge Özdemir explains the state of democracy in Turkey right now. And we hear directly from some of the student protestors - what changes do they want to see in Turkey?

Instagram: @bbcwhatintheworld Email: [email protected] WhatsApp: +44 330 12 33 22 6 Presenter: Hannah Gelbart Producers: Mora Morrison, Julia Ross-Roy and Maria Clara Montoya Editor: Verity Wilde

Fluoride has been in most American tap water for decades. It’s there to help to prevent tooth decay, especially in children. Scientists and health officials say it’s one of the biggest public health wins of the 20th century.

But lately, fluoride has found itself at the centre of a heated debate, with some people concerned about side effects. Robert F Kennedy Jr, the US Health Secretary, is one of those, but he has long expressed views that conflict with scientific evidence.

We break down the facts about fluoride, explain how the quantities of it in water is safe and tell you what you need to know with Phoebe Hopson, a BBC reporter, and Michelle Roberts, a doctor and health reporter.

Instagram: @bbcwhatintheworld Email: [email protected] WhatsApp: +44 0330 12 33 22 6 Presenter: Hannah Gelbart Producers: Julia Ross-Roy and Emily Horler Editor: Verity Wilde

Over 500 schools and universities in South Korea are dealing with a deepfake porn crisis. Explicit images and videos of classmates and teachers are being shared. The perpetrators are often students themselves. In fact, 80 per cent of those arrested for creating and distributing deepfakes are teenagers.

Hyojung Kim from the BBC’s Korean Service explains what’s happening and what’s being done to stop it.

Plus, presenter and campaigner Jess Davies gives us tips on what to do if you have been deepfaked.

If you’ve been affected by any of the issues raised in this episode and you are based in the UK, you can get support from relevant organisations through the BBC Action Line website: https://www.bbc.co.uk/programmes/articles/22VVM5LPrf3pjYdKqctmMXn/information-and-support-sexual-abuse-and-violence.

Instagram: @bbcwhatintheworld Email: [email protected] WhatsApp: +44 0330 12 33 22 6 Presenter: William Lee Adams Producers: Julia Ross-Roy, Elena Angelides, Benita Barden and Adam Chowdhury Editor: Verity Wilde

The annual World Happiness Report is out and Finland has been named the happiest country for the eighth year in a row.

What makes the Finns so joyful? Emilia Jansson from the What in the World team breaks it down for you.

But, is happiness just a fleeting emotion or is there more to it? Sarah Jelbert, a lecturer who teaches courses on the science of happiness explains how you can improve your life satisfaction.

And we hear from Sweden and Costa Rica, two countries that rank in the top ten.

Instagram: @bbcwhatintheworld Email: [email protected] WhatsApp: +44 0330 12 33 22 6 Presenter: Hannah Gelbart Producers: Emily Horler and Maria Clara Montoya Editor: Julia Ross-Roy

Netflix has a TV show out called Apple Cider Vinegar - it’s a dramatisation of a real story of a real influencer who was popular online, and said she was treating a terminal illness with alternative therapies. But it turned out the supposed natural treatments she was promoting didn’t do anything, because she didn’t really have brain cancer.

So it got us thinking - how can you spot false wellness claims?

Drinking special tea to make you slimmer. Rubbing bee venom on your face to reduce fine lines and wrinkles. Inserting gemstones into your vagina to regulate menstrual cycles. These are just three on the seemingly endless list which have little to no scientific evidence to support their purported benefits.

Jacqui Wakefield, a reporter with the BBC’s Global Disinformation Unit, takes us through what makes these trends take off and how we can spot the bad ones online. Makuochi Okafor in our Lagos bureau explains what wellness scams look like in Nigeria. And Maria Clara Montoya tells us about the scene in Latin America.

Instagram: @bbcwhatintheworld Email: [email protected] WhatsApp: +44 0330 12 33 22 6 Presenter: William Lee Adams Producer: Emily Horler Video Journalists: Benita Barden and Adam Chowdhury Editor: Verity Wilde

Imagine going on a work or school trip for eight days, but ending up away from home for nine months. Now, imagine that journey was to space. NASA astronauts Suni Williams and Butch Wilmore’s spacecraft launched in June last year from Cape Canaveral in Florida. They were taking part in the first crewed test flight of the Starliner spacecraft, developed by Boeing. But there were some technical problems after launch and NASA decided it was too risky to use it to take the astronauts back to Earth. Instead, Suni and Butch would catch the next scheduled flight home, which ended up being nine months later. And now Suni and Butch have splashed down off the coast of Florida in a different spacecraft.

Our Science Editor, Rebecca Morelle, explains what went wrong with the mission, if they were really stranded, and what daily life is actually like in space.

Instagram: @bbcwhatintheworld Email: [email protected] WhatsApp: +44 0330 12 33 22 6 Presenter: Hannah Gelbart Producers: Emily Horler and Elena Angelides Editor: Verity Wilde

On Sunday night, hundreds of people gathered at Pulse nightclub in Kocani, North Macedonia to watch the popular hip-hop duo DNK perform. It ended in tragedy. A fire ripped through the venue killing 59 people and leaving more than 150 others injured.

Reports say the fire was caused by sparks from pyrotechnic devices that hit the ceiling, which was made of highly flammable material. The incident has raised questions about how the venue was able to operate with inadequate safety measures, and if corruption has a role to play.

We speak to Saska Cvetkovska, an investigative journalist in Skopje, about what we know so far and how the country is coping with the aftermath of the tragedy.

Instagram: @bbcwhatintheworld Email: [email protected] WhatsApp: +44 0330 12 33 22 6 Presenter: Hannah Gelbart Producers: William Lee Adams and Benita Barden Editor: Verity Wilde

Taylor Swift fans were gathering in Vienna in August last year, when organisers announced her three-night run would be cancelled, due to a terror threat. Three teenagers were arrested, accused of plotting an attack which was allegedly inspired by the Islamic State group. Speaking at a news conference, an Austrian politician said that “a tragedy was prevented.”

This sits within a wider picture of people behind acts like this getting younger. Although the numbers aren’t huge, in Europe last year, 1 in 5 terror suspects were under the age of 18. In the UK, it was double that. This data comes from a report written by Thomas Morgan, from the Institute for Economics and Peace in Australia. He joins the podcast to talk about the rise in radicalisation amongst young people.

We are also joined by Julian, a counsellor who works with teenagers in Berlin who have been radicalised by far-right ideology. He tells us how sessions run by Violence Prevention Network aim to change attitudes and behaviours of radicalised young people. Instagram: @bbcwhatintheworld Email: [email protected] WhatsApp: +44 0330 12 33 22 6 Presenter: Hannah Gelbart Producers: Emily Horler, Elena Angelides and Julia Ross-Roy Editor: Verity Wilde