Yossi Vardi

Internet Entrepreneur

Simon Anholt

Independent Policy Adviser; Helps Countries to Enhance Economic, Political & Cultural Engagement

Julia Ormond

Actress & International Anti-Human Trafficking Activist

Timothy Patrick McCarthy

Award-Winning Scholar, Educator & Human Rights Activist; Faculty Member at Harvard University's Graduate School of Education and John F. Kennedy School of Government

Reckoning with History: Unfinished Stories of American Freedom

Timothy Shriver

Chairman & CEO of the Special Olympics

Michel Martin

Weekend Host of "All Things Considered" & Former Host of "Tell Me More"

David Miliband

President & Chief Executive Officer of the International Rescue Committee; Former UK Foreign Secretary

Richard Wolffe

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

President's Speaker Series - YouTube

Brian Hoffstein

Contributing Writer

Nicholas Burns

Professor of the Practice of Diplomacy & International Politics, Harvard Kennedy School

Elizabeth Cohen

Senior Correspondent for the CNN Health, Medical, & Wellness Unit

Elizabeth Cohen - CNN news story on baby formula shortage

Paul Rieckhoff

Founder and Executive Director of Iraq and Afghanistan Veterans of America (IAVA); Author, "Chasing Ghosts: Failures and Facades in Iraq"

David Rothkopf

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

Xavier Sala-i-Martin

Chief Economic Advisor to the World Economic Forum

Sister Souljah

Author, Rap Artist & Community Activist

Joe Pine

Expert on Experience Staging and Mass Customization

Josh Hamilton

Former Outfielder for the Texas Rangers; 5-Time MLB All-Star & Recovering Substance Abuser

Mikko Hypponen

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

If It's Smart, It's Vulnerable

Andrew Winston

Sustainability Expert; Author of "Green to Gold" & Co-author of “Net Positive"

Janette Sadik-Khan

Leading Voice on Urban Transportation Policy

Goran Persson

Former Prime Minister of Sweden

Ed Barlow

Futurist, President of Creating the Future, Inc.

Bret Baier

Chief Political Anchor for Fox News; Anchor & Executive Editor of the "Special Report;" New York Times Bestselling Author

Alex Steffen

Author of "Carbon Zero: Imagining Cities That Can Save the Planet"

Carolyn Jessop

Polygamist Survivor & Author of "Escape"

Eliot Spitzer

Former Governor, New York State

Heidi Cullen

Communications Director for Monterrey Bay Aquarium Research Institute; Climate Scientist

Ahmed Shihab-Eldin

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

Robert D. Kaplan

Best-Selling Author & Atlantic Monthly Correspondent

Daniel Silva

New York Times Bestselling Author & Spy Novelist