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.

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.

Richard A. Posner and Juliette Kayyem debate whether a domestic intelligence agency, such as Britain's MI5, would benefit U.S. counterterrorism efforts.

Two leading national security specialists, Daniel Goure, a vice president of the Lexington Institute, and Joseph Cirincione, senior vice president for national security and international policy at the Center for American Progress, debate whether America and its military are headed unavoidably toward an "Iraq Syndrome."

Philip J. (P.J.) Crowley, a former top national security official in the Clinton administration and senior fellow at the Center for American Progress, debates the ability of Democrats to run national security affairs with Richard Miniter, an adjunct fellow at the Hudson Institute and author of Losing Bin Laden.

Some experts argue the United States intends to establish a long-term military foothold in Iraq to increase its influence in the region, while others say it is merely responding to present security concerns.

The Chinese economic boom could pose a real challenge to U.S. power and influence. Morgan Stanley's Stephen Roach and Desmond Lachman of the American Enterprise Institute debate whether China's growth is happening at the United States' expense.

U.S.-Cuban relations have been virtually nonexistent since 1961, when the United States assumed a two-pronged policy of economic embargo and diplomatic isolation. Now that Fidel has transferred power to his younger brother, Raul, some experts think the United States should reconsider its policy toward Cuba. Philip Peters of the Lexington Institute and Dennis Hays, the State Department's former Coordinator for Cuban Affairs, debate how the United States should engage with a post-Castro Cuba.

The debate over immigration rages on as Congress tries to reconcile very different approaches to addressing the growing number of illegal immigrants in America. Tamar Jacoby of the Manhattan Institute and Steven Camarota of the Center for Immigration Studies discuss how the United States should handle the issue.