Luke Harding is an award-winning foreign correspondent with the Guardian and a #1 New York Times bestselling author. Between 2007 and 2011 he was the Guardian's Moscow bureau chief; the Kremlin expelled him from the country in the first case of its kind since the Cold War. He is the author of numerous books, including Shadow State, Collusion, A Very Expensive Poison and The Snowden Files, as well as the co-author of WikiLeaks and The Liar (nominated for the Orwell Prize). Two of Harding's books have been made into films: The Fifth Estate and Snowden.