Fareed Zakaria hosts CNN's flagship international affairs show, Fareed Zakaria GPS, which airs across the world to 220 million households. He writes a weekly column for the Washington Post, which reaches between 80-100 million readers every month. He is the author of The Future of Freedom (2003), The Post-American World (2008) and In Defense of a Liberal Education (2015).

Niall Ferguson is one of Britain's most renowned historians. He is a Laurence A. Tisch Professor of History at Harvard University, a Senior Research Fellow of Jesus College, Oxford University, and a Senior Fellow of the Hoover Institution, Stanford University.

The bestselling author of Paper and Iron, The House of Rothschild, The Pity of War, The Cash Nexus, Empire and Colossus, he also writes regularly for newspapers and magazines all over the world.

Since 2003 he has written and presented three highly successful television documentary series for Channel Four: Empire, American Colossus and, most recently, The War of the World. He, his wife and three children divide their time between the United Kingdom and the United States.