The digital detectives tackling child sexual abuse
Europol, the EU's law enforcement agency, is taking an innovative approach to solving disturbing crimes.
It holds more than 40 million images of child sexual abuse. In many cases the perpetrators remain at large, and their victims unidentified.
By posting parts of those photos online - with the abusers and their victims removed - they are hoping members of the public can help them find out where the crimes took place, and so trace the perpetrators.
Around the world, ordinary people are combing over the photos, using online tools and local knowledge to uncover fresh clues - and the results can be remarkable.
Sam Judah meets the digital detectives trying to geolocate the places where the photos were taken, and asks Europol how their work can lead to the prosecution of criminals.
Presenter: Kat Hawkins
Reporter: Sam Judah
(Photo Caption: Europol is asking for help identifying this location / Photo Credit: Via Europol)
Crossing divides in Cyprus
Cyprus has been divided since 1974, but a community centre is bringing Greek Cypriots and Turkish Cypriots together in the buffer zone between the two sides.
Cyprus has been a divided island since 1974, with Turkish Cypriots living in the north and Greek Cypriots in the south. The two communities have been able to cross the island at police checkpoints since 2003, but memories of past conflict have held many back.
However, one unique community centre is bringing people together right in the buffer zone that divides the two sides. Staffed by both Greek Cypriots and Turkish Cypriots, the Home for Co-operation encourages people to meet and form friendships through shared interests, from djembe drumming to salsa classes. It hosts projects and groups trying to stop old prejudices taking root in the younger generation. It also provides a base for businesses and social enterprises, all seeking to melt decades of distrust.
But how big a difference can one centre make on an island of one million people, in the face of political problems and personal trauma?
Presenter: Nick Holland
Produced: Claire Bates
(Photo Caption: Lefki Lambrou and Hayriye Rüzgar / Photo Credit: BBC)
Last video messages to help children grieve
Children who lose a parent may struggle to come to terms with this for the rest of their lives. In the UK about one in 20 children will lose a parent before the age of 16. In other countries, the figure is even higher. However, Gaby Eirew thinks she has a solution that can help. She works in counselling, often dealing with childhood trauma. Using that experience she has created a free app that has been downloaded in more than 30 countries around the world. It helps parents to create an archive of “selfie-style” videos on their phone, for their children to watch in the future. The app prompts parents to address the questions she has consistently found bereaved children want answered. Not all are what you might expect.
Presenter: Kathleen Hawkins
Reporter: Dougal Shaw
Producer: Alison Gee
(Photo Caption: Gaby Eirew / Photo Credit: BBC)
Contains extracts from the song “Never Forget” by Sky, recorded by Indi B Productions
Turning old clothes into new ones
It’s estimated that 400 billion square metres of fabric are made every year – enough to cover Germany – for the fashion industry. The sector produces a similar amount of greenhouse gases to the international airline and shipping industries combined.
The two most-used materials are cotton and polyester. Growing cotton requires a vast amount of land and water, and often chemicals too. Polyester is a by-product of the oil industry which has a massive environmental impact.
But after clothing has been used, just 1% of it is recycled in a way that means it can be turned into other clothes. Much of what’s left ends up in landfill or is burned.
What if that were to change and new clothes could easily be made out of old ones?
Companies across the world are trying to “close the loop” in the fashion industry, developing chemical processes to turn used fabric back into materials that can be used again.
Sweden’s Re:newcell is transforming old cotton into useable material, while the UK’s Worn Again has come up with a process to enable the re-use of blended textiles.
But are these processes viable? Will turning old pants into new shirts save the planet – or is the solution something much deeper?
Presenter: Nick Holland
Producer: Jamie Ryan
(Photo Caption: Clothes at a textile sorting depot / Photo Credit: BBC)
About 800,000 people take their own lives every year, that’s one person every 40 seconds, according to the World Health Organization.
For decades, doctors and researchers have tried to establish the key risk factors that identify someone as being at risk of suicide - depression, drug addiction and low social support have all been proposed - but research shows that no one variable gives doctors a useful steer.
This makes it very difficult for mental health professionals to predict who might try to kill themselves.
Now the psychologist Joseph Franklin is trying a new approach: to utilise machine learning to spot patterns in how hundreds of variables come together to put an individual at higher risk of suicide. He has developed a computer algorithm that is able to spot the subtle interplay of factors and make much more accurate suicide predictions. At the same time, researchers in the US are developing programmes that scan social media posts for signs that a town may be about to experience a higher rate of suicide than normal.
But how should these tools be used by doctors and public health bodies? And is there a risk that even as machines begin to understand suicide, doctors will remain in the dark about how to help their patients, and when?
Presenter: Nick Holland
Reporter: William Kremer
(Photo Credit: Getty Images)