Stephen Kinzer - Author & Veteran New York Times Correspondent | Chas Freeman - Former U.S. Ambassador to Saudi Arabia | Amy Myers Jaffe - Executive Director of Energy & Sustainability at UC Davis | Phyllis Bennis - Director of the New Internationalism Project at Institute for Policy Studies | Andrew Bacevich - Author & Professor of International Relations & History at Boston University. How will low oil prices and the inexorable shift to clean energy affect the Middle East, and how should America’s relationship with the region change in response?

Katrina vanden Heuvel - Editor & Publisher of The Nation | Susan Eisenhower - President of The Eisenhower Group, Inc. | Richard Sakwa - Professor of Russian & European Politics at the University of Kent at Canterbury | Stephen F. Cohen - Professor Emeritus of Russian Studies, History & Politics at NYU & Princeton University | Mary Dejevsky - Chief Editorial Writer & Columnist at The Independent. Can we prevent a new Cold War and engage Russia in ways that promote global peace and security?

Soraya Darabi - Co-Founder of Zady. How can pursuing the humanities translate to success in the business world?

Jim Walsh - Research Associate in the Security Studies Program at MIT | Andrew Weber - Former Assistant Secretary of Defense & former Director of the Nuclear Weapons Council | Christine Parthemore - International Affairs Fellow-Japan at the Council on Foreign Relations | Erica Fein - Nuclear Weapons Policy Director at WAND Education Fund | Greg Terryn - Policy Analyst at The Center for Arms Control & Non-Proliferation. What are the arguments for, and especially against, reinvesting in the next generation of nuclear weapons?

Eli Pariser - CEO & Co-Founder of Upworthy | Ilya Sheyman - Executive Director of MoveOn.org Political Action | Taylor Jo Isenberg - Vice President of Networks at Roosevelt Institute | Stanislas Phanord - Rangel Fellow at U.S. Department of State | Robert Cruickshank - Senior Campaign Manager at Democracy for America | Sarah Margon - Washington Director at Human Rights Watch. How will the attitudes and values of the Millennial Generation shape American foreign policy in the coming decades?

Elñora Tena Webb - President of Laney College | Kathryn Temple - Associate Professor at Georgetown University | Peter Leyden - Founder of Reinvent. What is the value of the humanities to students in community colleges who are focused on getting jobs?

Carl Pope - Former Executive Director of Sierra Club | Bill McKibben - Founder of 350.org | Sarah Ladislaw - Director of the Energy & National Security Program at Center for Strategic & International Studies | Roger Sorkin - Director & Producer of "The Burden: Fossil Fuel, the Military, and National Security" | Lena Moffitt - Director of the Dirty Fuels Campaign at Sierra Club. How could the battle against climate change drive a fundamental shift in American foreign policy?

Norberto Grzywacz - Dean of the Graduate School of Arts & Sciences at Georgetown University | Peter Leyden - Founder of Reinvent. How can artists and scientists collaborate to solve blindness and other global challenges?

John Markoff - Technology and Science Reporter for The New York Times | Peter Leyden - Founder of Reinvent. How will automation and artificial intelligence shape the future of work, and the future of society at large?