Julian Assange is one of the most influential figures to emerge this century. The Australian born founder of WikiLeaks has harnessed the technology of the digital age to unleash an information war against governments and corporations. Now Julian Assange is in the fight of his life. In April this year he was dragged, protesting, from the Ecuadorian Embassy in London, nearly seven years after seeking diplomatic protection. On Monday Four Corners investigates the prosecution of Julian Assange in key interviews with those at the heart of WikiLeaks and those who have sought to bring him to US justice.