Arvind Panagariya

Professor of Economics & Jagdish Bhagwati Professor of Indian Political Economy at Columbia University

Xavier Sala-i-Martin

Chief Economic Advisor to the World Economic Forum

Rose Mapendo

Humanitarian / Activist / Congolese Genocide Survivor

Jeffrey Garten

Professor, Yale School of Management and Expert on Global Business Strategy

Dr. Jonathan Foley

World Leading Climate Scientist & Executive Director of Project Drawdown

Dean Karlan

Behavioral Economist, Social Entrepreneur & Author

Edward C. Chow

Senior Associate at the Center for Strategic and International Studies, Energy Security and Climate Change Program

Tara Sophia Mohr

Expert on Women’s Leadership and Well-Being; Author of "Playing Big: Find Your Voice, Your Mission, Your Message"

Dennis Kucinich

Fox News Contributor, Former Ohio US Representative and Two-Time Presidential Candidate

Stephen Walt

Robert and Renee Belfer Professor of International Affairs at Harvard University

Stephen M. Walt | Realism & Balance of Threat | GREAT MINDS

Amy Gutmann

United States Ambassador to Germany; Former President of UPenn

David Rothkopf

Former U.S. Under Secretary of Commerce and Former CEO & Editor of the Foreign Policy Group

Kenneth Roth

Executive Director at Human Rights Watch

Ingrid Newkirk

President, PETA

An Phung

Multimedia Journalist

David Bellos

Translator

Slavoj Žižek

Philosopher & International Director of the Birkbeck Institute for the Humanities

Rye Barcott

Co-Founder & CEO of With Honor, Veteran and Author of "It Happened on the Way to War"

Shashi Tharoor

Diplomat & Author; Former United Nations Under-Secretary-General

Dr. Linda Yueh

Fellow of Economics & Director of the China Growth Centre at the University of Oxford; Globally-Recognized Authority on Chinese Economy

Robin Wright

Foreign Policy Analyst, Journalist & Author of "Rock the Casbah: Rage and Rebellion across the Islamic World"

Somaly Mam

Survivor & Anti-Sex Slavery Activist

Shirin Ebadi

Nobel Peace Prize-Winning Iranian Activist & Lawyer

Dr. Samantha Nutt

Medical Doctor, Award-Winning Humanitarian, Bestselling Author & Founder of War Child USA

Mark Kramer

Co-founder of FSG, Author & Co-Creator of Shared Value Concept

Ben Goldacre

Physician; Best-Selling Academic & Science Writer

Rebecca MacKinnon

Founding Director of Ranking Digital Rights

Yves Rossy

Military-Trained Pilot & Aviation Enthusiast

Mikko Hypponen

Computer Security Expert; Chief Research Officer at WithSecure & Principal Research Advisor at F-Secure

If It's Smart, It's Vulnerable

Justin Hall-Tipping

The Energy Evangelist, Justin Hall-Tipping works on nano-energy startups -- mastering the electron to create power.