Stephen Wayne, a Georgetown University expert on the American presidency, has written 11 books, including “The Road to the White House.” He discussed with McClatchy-Tribune foreign-affairs columnist John C. Bersia the firing of Afghanistan war commander Gen. Stanley McChrystal because of statements critical of the Obama administration that he and others made in Rolling Stone [...]

Terrorism specialist John Schindler, the author of “Unholy Terror: Bosnia, Al-Qa’ida, and the Rise of Global Jihad,” is a professor at the U.S. Naval War College. He discussed the changing global danger Americans face with McClatchy-Tribune foreign-affairs columnist John C. Bersia.

Jack Mendelsohn, a former senior Foreign Service officer, a member of the SALT II and START I delegations and a former deputy director of the Arms Control Association, discussed the new START treaty with foreign-affairs columnist John C. Bersia.

Minxin Pei, the author of China’s Trapped Transition: The Limits of Developmental Autocracy, is the Tom and Margot Pritzker Professor of Government and Director of the Keck Center for International and Strategic Studies at Claremont McKenna College. He discussed China’s high-profile fury over a $6.4 billion U.S. arms sale to Taiwan with McClatchy-Tribune foreign-affairs columnist [...]

Stephen Sloan, the author of “Terrorism: The Present Threat in Context,” has worked for many years with the U.S. military on responding to and preventing terrorism. He discussed the investigation into an Army psychiatrist’s alleged rampage at Fort Hood with McClatchy-Tribune foreign-affairs columnist John C. Bersia.

Nobel Peace Prize laureate Desmond Tutu, formerly archbishop of Cape Town, South Africa, is the author of multiple books, including “God Has a Dream: A Vision of Hope for Our Time” and “No Future Without Forgiveness.” He discussed human rights and other global issues with foreign-affairs columnist John C. Bersia.

Joan Johnson-Freese, the author of Heavenly Ambitions: America’s Quest to Dominate Space, is the chair of the National Security Decision Making Department at the U.S. Naval War College. She discussed the nomination of Charles Bolden to serve as the next NASA chief and contemplated the U.S. future in space with foreign-affairs columnist John C. Bersia.

Peter W. Galbraith, the author of The End of Iraq and Unintended Consequences: How War in Iraq Strengthened America’s Enemies, formerly served as a U.S. ambassador to Croatia. He discussed global challenges for the United States with foreign-affairs columnist John C. Bersia.

Stephen Wayne, a Georgetown University expert on the American presidency, has written 11 books, including The Road to the White House. As part of his research on the 2008 presidential-nomination process, Wayne is conducting an evaluation of U.S. Sen. Hillary Rodham Clinton, a Democrat from New York. He discussed his preliminary assessment with foreign-affairs columnist [...]

Col. (ret.) Lawrence B. Wilkerson, who was former Secretary of State Colin Powell’s chief of staff from 2002-2005, currently teaches at The College of William & Mary. He shared his recommendations for the next U.S. president with foreign-affairs columnist John C. Bersia.