Charlotte Lydia Riley (Author) Charlotte Lydia Riley is a historian of twentieth-century Britain at the University of Southampton, specialising in questions about empire, politics, culture and identity. She is editor of The Free Speech Wars and author of Imperial Island: A History of Empire in Modern Britain. Her writing has appeared in a wide range of publications including the Guardian, New Statesman, Financial Times, Washington Post and History Today. She tweets @lottelydia.Suzanne Nossel (Author) Suzanne Nossel is the CEO of PEN America, the leading human rights and free expression organisation, and is a key voice on free expression issues in the United States and globally. During the Obama administration, Nossel served as Deputy Assistant Secretary of State for International Organisations. She has also served as a senior leader in global human rights organizations and as a media executive. She is the author of Dare To Speak: Defending Free Speech For All and has been widely published in outlets including the New York Times, Foreign Affairs, Guardian, Foreign Policy, Wall Street Journal, TIME, Washington Post and more. She is a Member of the Meta Oversight Board which applies human rights principles to shape high impact content moderation decisions on social media.