Index on Censorship is a campaigning and publishing organization based in London that focuses on freedom of expression. The organization regularly reports on hate speech. Contact: Chief Executive Jodie Ginsberg

Susan Benesch is director of the Dangerous Speech Project and a faculty associate of the Berkman Center for Internet and Society at Harvard University. She also teaches human rights at American University’s School of International Service.

Andrea Gittleman is the program manager for the Center for the Prevention of Genocide at the U.S. Holocaust Memorial Museum.

Dr. Agnès Callamard is director of the Global Freedom of Expression Project at Columbia University in New York City and former executive director of Article 19 in London.

Les Green is professor of the philosophy of law at Balliol College, Oxford. He is working on a book about “right speech” and argues that Buddhist ideas about avoiding divisive, abusive and false speech can help us live together well in free societies.

Cherian George is an associate professor at Hong Kong Baptist University School of Communication and director of the Asia Journalism Fellowship in Singapore. He has written extensively on hate speech and ethical media.

Matt Schissler is an adviser to the civil society group Paung Ku, a member organization of the Panzagar anti-hate speech campaign in Myanmar.

Nay Phone Latt is a Myanmar blogger and activist based in Yangon. He co-founded the local anti-hate speech campaign Panzagar.

Timothy Garton Ash is a British historian, author and commentator based in Oxford, U.K. He founded the project Free Speech Debate in 2011 to explore freedom of expression issues, including hate speech, from a global perspective.