Introduction

Why one financier is the target of a global conspiracy theory. Manuela Saragosa speaks to the BBC's Mike Rudin, who made a recent documentary on the Soros conspiracy, and to Joe Uscinski, associate professor of political science at the University of Miami - and an expert in conspiracy theories. And the BBC's Dhruti Shah speaks to David Mikkelson, the founder of Snopes, the company trying to debunk fake news for the last 25 years.

(Photo: Anti-Soros placards during a political demonstration is Macedonia in 2017, Credit: Getty Images)