Facebook’s chief executive Mark Zuckerberg is expected to face U.S Congress on Tuesday, as he embarks on a two-day marathon of testifying before both lawmakers and the world.

Mr Zuckerberg will be forced to shed light on a variety of issues including the recent Cambridge Analytica privacy catastrophe, which involved over 87 million users, as well as a string of other issues which have dogged the company for years.

Tuesday’s congressional hearing will mark the first time the CEO has submitted to questioning on Capitol Hill, with Mr Zuckerberg having dodged congressional spotlight for more than a decade.