Why Facebook's Libra project will attract the attention of regulators. Rob Young hears from the BBC's technology correspondent Rory Cellan-Jones about why Facebook is launching its own currency. Charles Cascarilla, founder of the digital currency company Paxos explains why the Libra project is so ambitious. Rebecca Harding, chief executive of the data and analytics group Coriolis Trade Technologies and former chief economist at the British Bankers’ Association, explains why regulators will be paying attention.

(Photo: Illustration of Facebook and digital currency, Credit: Getty Images)