Elizabeth Martin Perera, a climate policy analyst for the Natural Resources Defense Council, and Alex Farrell, director of UC Berkley’s Transportation Sustainability Research Center, discuss the merits and challenges of coal-to-liquids as an alternative fuel.

Simon Cox of the Economist and Jake Colvin of the National Foreign Trade Council debate the merits and drawbacks of economic sanctions.

James Jay Carafano of the Heritage Foundation and Gabor Rona of Human Rights First debate the merits of shutting down the U.S. detention facility at Guantanamo Bay.

William A. Pizer, senior fellow at Resources for the Future, and Kenneth P. Green, resident scholar at the American Enterprise Institute, debate how the United States should regulate greenhouse gas emissions.

Charles Kernaghan of the National Labor Committee and Claude Barfield of the American Enterprise Institute debate the merits of labor standards in trade pacts.

CFR's Manjeet N. Kripalani and Adam Segal debate whether India will overtake China.

A pair of Somalia experts, Terrence Lyons and Sadia Ali Aden, discuss U.S. policy options for the war-torn nation on Africa's Horn.

Robert Litwak of the Woodrow Wilson Center and Michael Rubin of the American Enterprise Institute debate whether regime change in Iran should be part of U.S. foreign policy.

Daniel T. Griswold of the Cato Institute and Bob Young of the American Farm Bureau debate whether American farm subsidies should be maintained.

CFR's Michael A. Levi and Harvard's Graham T. Allison consider the likelihood of catastrophic nuclear terrorism in the United States.

Francis Kornegay, senior researcher at the Center for Policy Studies in Johannesburg, and Tom Wheeler, research fellow at the South African Institute of International Affairs, debate whether South Africa is living up to its responsibility as Africa’s leader.

Immigration experts Bruce Fein and Marc R. Rosenblum debate the wisdom of offering a path to citizenship for the estimated twelve million illegal immigrants in the United States.

East Asia military specialists Richard Halloran and John J. Tkacik, Jr. debate about whether China poses a military threat to the United States.

Two nonproliferation experts evaluate the recent deal with North Korea's nuclear program.

Bill Roggio, a widely published journalist who authors the Fourth Rail blog, debates Kathy Gannon, author of I is for Infidel and a longtime AP correspondent, about whether Pakistan is doing all it should to secure its Afghan border.

Two experts debate the mechanism for adjudicating trade arguments.

Deborah Brautigam of American University, author of Chinese Aid and African Development: Exporting Green Revolution, and Senegalese journalist Adama Gaye, author of China-Africa: The Dragon and the Ostrich, debate whether Chinese investment is good for Africa.

David B. Rivkin, a legal expert and author, and Karen J. Greenberg, executive director of NYU’s Center on Law and Security, debate the appropriate venue for prosecuting “enemy combatants.”

Sarah E. Mendelson of the Center for Strategic and International Studies and Nikolas Gvosdev of the National Interest debate what Russia will resemble after Putin.

For more than a decade, the United States and North Korea’s neighbors have tried various tactics to keep the rogue state, which conducted its first nuclear test in October, from becoming nuclear. David C. Kang and Aaron L. Friedberg debate the best approaches to influence a nuclear North Korea.