Business Daily

Liesel Pritzker Simmons and her husband Ian Simmons are billionaires who come from successful US business families. Liesel's family is best known for founding Hyatt hotels. Both say the the US government should be collecting more tax from super-rich people like them. We asked them why. And Dr Ted Klontz, associate professor of practice and financial psychology at Creighton University in the US, explains the psychology of a billionaire. (Photo: A gold Ferrari parked outside an expensive boutique in London, Credit: Getty Images)

Should the richest be taxed out of existence? Manuela Saragosa hears from Emmanuel Saez, a US-based French economist advising US presidential hopeful Elizabeth Warren on a wealth tax targeting the super rich. The arguments against taxing billinaires more come from Chris Edwards, an economist at the libertarian Cato Institute in Washington DC. (Photo: Bill Gates and Warren Buffet at an event in 2017, Credit: Getty Images)

The murky world of fake Instagram followers, fake comments, fake likes. Edwin Lane turns to the dark side in his quest for more followers for his Instagram account, with help from Belgian artist Dries Depoorter. Evan Asano from the influencer marketing company Mediakix describes how a mass following of bots almost landed him a marketing deal, and Andrew Hogue, founder of a company called Authentique, explain how artificial intelligence is being used to spot fake influencers. (Photo: Instagram logo. Credit: Getty Images)

How hard is it to make money on Instagram? Ed Butler hears from successful influencer Laura Strange, who makes a living from her Gluten-free food themed profile, and the BBC's Edwin Lane tries to become an influencer himself, with advice from Harry Hugo co-founder of the influencer marketing agency Goat, and Marie Mostad, influencer expert at the platform Inzpire.me. (Photo: Instagram logo displayed on a laptop. Credit: Getty Images)

Brittany Kaiser was one of the whistleblowers who brought down her former employer, Cambridge Analytica. She helped to expose how the data analysis firm had collaborated with Facebook to profile millions of voters around the world, in order to target them with tailor-made propaganda. In an extended interview, she tells the BBC's Jane Wakefield how our data is still open to abuse by those seeking to undermine democracy by manipulating the way we vote. (Picture: Brittany Kaiser in Washington, DC; Credit: Bill O'Leary/The Washington Post via Getty Images)