British historian and bestselling author Niall Ferguson, top-ranking American diplomat Richard Holbrooke, Washington Post columnist Charles Krauthammer, and human rights scholar and Pulitzer Prize-winning author Samantha Power discuss global security and the 2008 U.S. presidential election, Former U.S. Ambassador to the United Nations John Bolton, former Foreign Minister of the Australian Parliament and President and Chief Executive of the International Crisis Group Gareth Evans, actor and humanitarian Mia Farrow, and former Chief of the Defence Staff of the Canadian Forces General Rick Hillier debate the pros and cons of humanitarian intervention. Professor of Economics Paul Collier, economist Hernando De Soto, former UN Secretary-General Stephen Lewis, and bestselling author of Dead Aid Dambisa Moyo explore the opportunities and hazards of foreign aid. Former British politician and bestselling author Lord Nigel Lawson, adjunct professor at the Copenhagen Business School and bestselling author Bjørn Lomborg, environmental activist and Leader of the Green Party of Canada Elizabeth May, and journalist and bestselling author George Monbiot tackle one of the great public policy questions of our time: how should the world respond to climate change? Intelligent, informative, and entertaining, is a lively forum of ideas and opinions that aims to reinvigorate public discourse and civic dialogue, and captures the prevailing moods, clashing opinions, and most imperative issues of our time.