Mrs Broadwell is a Harvard University research associate and PhD candidate at King's College, London.

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Mr. BRENDAN NYHAN: (PhD Candidate, Duke University, Author, "When Corrections Fail: The Persistence Of Political Misperceptions"): Thank you.

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The man behind the script is Arnab Nandi, a PhD candidate in computer science at the University of Michigan.

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Locke (the London School of Economics), and PhD candidate Alex B.

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Solange Guo Chatelard is a PhD candidate at the Institut d'Etudes Politiques de Paris and an associate at the Max Planck Institute for Social Anthropology in Germany.

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