Now Director of Communications at Google, Peter Barron was previously Editor of Newsnight, and Deputy Editor of Channel 4 News. Responsible for the search engine's communications in Europe, the Middle East and Africa, he explains why he left a top job in journalism to take a PR role, gives an insight into how Google will work with news companies in the future, and reveals the inside workings of the public policy function at one of the largest and most secretive technology firms in the world.