Peter Mandelson, Commissioner for External Trade, European Union

Zainah Anwar, Executive Director, Sisters in Islam (SIS)

Zhou Wenzhong, Ambassador of the People’s Republic of China to the United States

Scott Sagan and Kenneth Waltz use the context of Iran to update the debate that began with their seminal work, `The Spread of Nuclear Weapons:  A Debate`, published in 1995.

Abdullah Gül, Deputy Prime Minister and Minister of Foreign Affairs of the Republic of Turkey, discusses Turkey's relationship with Iraq and the broader Middle East.