Argentine stocks and currency plunge

Argentine stock markets and its currency have both plunged after conservative Argentine President Mauricio Macri suffered a shock defeat in primary elections on Sunday. The peso fell 15% against the dollar on Monday after earlier plunging around 30% to a record low. Some of the country's most traded stocks have also lost around half of their value in one day. We get analysis from the BBC's South America Business correspondent Daniel Gallas. There is a lot of illegal and disturbing content on the internet. But have you ever wondered who has to remove it?

Silicon Valley's biggest social media companies -- including Facebook, Twitter, and YouTube -- employ tens of thousands of people to weed out the content. But as the BBC's Ivana Davidovic found out, many are employed by subcontractors in India and the Philippines, and are paid wages well below the average tech employee in Silicon Valley. We hear from former US-based moderator Shawn Speagle who still suffers serious health consequences caused by stress and trauma. One of Facebook's Vice-Presidents, Arun Chandra, tells us the company has improved pay and offers psychological support on every shift. We also hear about the booming business of internet moderation in India and explore the possibilities offered by artificial intelligence to automate some of the work.

Also on the programme: Hong Kong Airport comes to standstill with dozens of flights cancelled as protests continue to rock the former British territory. The city's flagship airline Cathay Pacific has also found itself caught in the middle of the political dispute.

(Photo: a currency exchange in Buenos Aires. Credit: Getty Images.)