Are dating apps like Tinder speeding up the decline of the arranged marriage in India? Manuela Saragosa speaks to the brains behind three apps competing in what is a gigantic market for hundreds of millions of lonely hearts.

Mandy Ginsberg, chief executive of Match Group, talks about the generational shift they are seeing in Indian attitudes to dating, having just launched the Tinder app there. Priti Joshi, director of strategy at Bumble describes her surprise that Indian millennials seem unconcerned about dating across social castes. And Gourav Rakshit, who runs the more traditional marriage-focused app Shaadi.com, explains why he thinks the scope for Western-style casual dating is still quite limited in his country.

(Picture: Young Indian woman using mobile phone; Credit: triloks/Getty Images)

Is the telecoms equipment provider a front for Chinese espionage or just the victim of the escalating US-China dispute? Why don't Western governments trust the company to handle its citizens' data?

Following the controversial arrest in Canada of Huawei's finance head Meng Wanzhou, the BBC's Vishala Sri-Pathma asks whether the move is just the latest step in a tech cold war between the US and China. She speaks to Rand Corporation defence analyst Timothy Heath, tech journalist Charles Arthur, and China tech podcaster Elliott Zaagman.

(Picture: Security guard keeps watch at the entrance to the Huawei global headquarters in Shenzhen, China; Credit: Nicolas Asfouri/AFP/Getty Images)

Presidential elections in the DRC this weekend come after 17 years of conflict-ridden rule under controversial president Joseph Kabila. Leading businessman and mine-owner Emmanuel Weyi explains why he has pulled out of the presidential race. But the country's mineral wealth also means the elections are being closely watched by international industries. Indigo Ellis from the risk consultancy Verisk Maplecroft gives her assessment, and Jack Lifton, a business operations consultant in metals and an expert on cobalt, explains why one mineral produced in the DRC is so important to the emerging electric car industry.

(Photo: Women walk past a campaign poster of the President of the Democratic Republic of the Congo, Joseph Kabila's chosen successor Emmanual Ramazani Shadary in Kinshasa, Credit: Getty Images)

How technology can help look after an ageing population. Ed Butler visits a care home in Japan where robots are used to help dementia patients, and hears from Adam Gazzaley, a California-based professor of neurology and psychiatry who has developed a video game aimed at keeping older people alert. Computer science academic Alessandro di Nuevo gives an overview of how technology is increasingly employed in elderly care.

(Photo: 'Paro', the therapeutic seal robot with an elderly woman in Japan, Credit: BBC)

The people vying for success in India's tech startup scene. Rahul Tandon explores how Bangalore has turned into a hub for Indian tech startups, and meets the young Indians who have shunned the security of a salaried job in the tech sector to strike out on their own.

(Photo: Interns working at one tech startup in Bangalore, Credit: Getty Images)

Racism persists in the workplace - how do we stop it blighting another generation of talent?

Vishala Sri-Pathma visits Deji Adeoshun, leader of the Moving On Up programme, which seeks to improve employment opportunities for young black men in London, to find out how simply having the wrong name and sounding too street can harm your job prospects.

Business psychologist Binna Kandola explains how racism in the office has mutated into a more subtle form that many white people fail to recognise exists. Plus Michael Caines - one of only two black Michelin-star chefs in the UK - tells of the grit and doggedness he needed to rise to the top of his profession, despite his skin colour.

(Picture: Michael Caines; Credit: Michael Caines)

These are uncertain times. The British Prime Minister Theresa May has survived a vote of confidence in her leadership, but the future of her Brexit deal remains unknown. In the US, Donald Trump faces a hostile Congress and multiple legal threats to his presidency. Meanwhile the IPCC says the entire planet must urgently address the existential challenge of climate change, yet the path forward remains littered with obstacles.

What is the best way to weather all this uncertainty? In a programme first aired in 2016, Manuela Saragosa gets advice from David Tuckett, professor and director of the Centre for the Study of Decision-Making Uncertainty at University College London. Plus, David Spiegelhalter, Winton professor for the Public Understanding of Risk in the Statistical Laboratory, at the University of Cambridge, explains the difference between risk and uncertainty.

Lt Col Steven Gventer of the US Army tells us how soldiers are trained to deal with uncertainty in war. And, Will Borrell, founder and owner of Vestal Vodka and the owner of the Ladies & Gents bar in London, recalls how his customers reacted on the evening after the UK voted to leave the European Union.

(Picture: British Prime Minister Theresa May at the opening day of the G20 Summit in Argentina; Credit: Amilcar Orfali/Getty Images)

Businesses are getting exasperated by the uncertainty over whether and how the UK will leave the EU in three-and-a-half months' time. Britain faces three options - either Prime Minister Theresa May's painstakingly negotiated withdrawal deal, or a traumatic "no deal" Brexit, or the humiliation of cancelling Brexit altogether. None of the three options commands clear majority support either in the UK parliament or among the British public. And as the clock ticks down to 29 March 2019, businesses are hurriedly preparing for all possible scenarios.Manuela Saragosa speaks to Dutch MP Pieter Omtzigt; Dr Gemma Tetlow, chief economist at think tank the Institute for Government; and Jacob Thundil, founder of British coconut products exporter Cocofina.

(Picture: A container ship at the port of Felixstowe, UK; Credit: Getty Images)

European glass eels are worth a fortune in East Asia, where they're regarded as a delicacy in restaurants in China and Japan. But the lucrative smuggling trade from Europe to Asia is contributing to their status as an endangered species. Ed Butler tries some eel in a restaurant in Japan while UN researcher Florian Stein describes the scale of the smuggling. Andrew Kerr, chairman and founder of Sustainable Eel Group, explains the risks to the species in Europe.

(Photo: A fisherman holds glass eels fished in France, Credit: Getty Images)

Donald Trump has threatened to pull the US out of the global postal system, after receiving a letter from the inventor of the "Mighty Mug".

Jayme Smaldone tells Manuela Saragosa how he was prompted to write the letter by the inexplicably low prices that Chinese knock-offs of his product were able to charge on online retail platforms in the US.

It all boiled down to the arcane system of international postal charges set by the Universal Postal Union way back in the 1800s, as Washington DC-based lawyer Jim Campbell explains. And according to Gary Huang of the American Chamber of Commerce in Shanghai, some Chinese businesses are profiting enormously.

(Picture: Mighty Mugs; Credit: Mighty Mug)

It's easy for anyone, from criminals to stalkers, to dig up your personal information online. So is it even possible to disappear in our digital world?

Manuela Saragosa is somewhat shocked by Tony McChrystal of data security firm ReputationDefender, when he reveals the personal details he discovered about her from a cursory search on his mobile phone shortly before she interviewed him.

Silkie Carlo of pro-privacy lobby group Big Brother Watch explains why she thinks the big social media companies and online retailers need to end the implicit deal whereby they offer us free services in return for the ability to track and monetise our data.

Plus Frank Ahearn explains how his job used to be trying to trace individuals who want to disappear, such as those who have skipped bail. Today he helps clients disappear online, to escape stalkers or dangerous former business associates. He says it's not that hard to throw people off your digital trail.

(Picture: Computer hacker working on laptop late at night in office; Credit: FangXiaNuo/Getty Images)

Are "voluntourists" - foreigners coming to do well-meaning voluntary work - actually doing more harm than good at developing world orphanages?

Manuela Saragosa speaks to one who says she saw the light. Pippa Biddle travelled to Tanzania to help do construction work at an orphanage. But she soon realised that the shoddy work she and her fellow American students were doing was creating more work for the people they were supposedly helping, and the whole project was really designed for their own benefit.

But the harm goes further than that, as James Sutherland, who works in Cambodia for the child welfare organisation Friends International, explains. Voluntourism creates a demand for an industry of fake orphanages trafficking in children who are not even orphans.

(Picture: American woman with two African children; Credit: MShep2/Getty Images)