Yochi Dreazen

Deputy Managing Editor & Foreign Editor of Vox; Author of "The Invisible Front: Love and Loss in an Era of Endless War"

Arvind Panagariya

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

Rose Mapendo

Humanitarian / Activist / Congolese Genocide Survivor

Sarah O. Ladislaw

Former Managing Director at Rocky Mountain Institute (RMI)

Ahmed Shihab-Eldin

Emmy-Nominated Journalist; Correspondent & Producer at VICE Media, LLC

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

Scott Aughenbaugh

Strategic Engagement Director at the National Security Innovation Network

Kenneth Roth

Executive Director at Human Rights Watch

Marina Adshade

Author of "Dollars and Sex: How Economics Influences Sex and Love"

David Bellos

Translator

Slavoj Žižek

Philosopher & International Director of the Birkbeck Institute for the Humanities

Dr. Samantha Nutt

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

Yves Rossy

Military-Trained Pilot & Aviation Enthusiast

Anna Dietrich

‎Entrepreneur; Consultant; Speaker; COO & Co-Founder of Terrafugia, Inc.

Justin Hall-Tipping

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

Todd Kuiken

Biomedical Engineering Manager at the Rehabilitation Institute of Chicago

Helen Clark

Former Administrator of the United Nations Development Programme & Former Prime Minister of New Zealand

Jim Wallis

Theologian, Writer, Political Activist & Racial Justice Advocate

Christ in Crisis: Why We Need to Reclaim Jesus

Richard Wolffe

Digital Executive, Best-Selling Author & Columnist at The Guardian

President's Speaker Series - YouTube