Rebecca MacKinnon

Founding Director of Ranking Digital Rights

Yves Rossy

Military-Trained Pilot & Aviation Enthusiast

Anna Dietrich

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

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.

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

David Miliband

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

Jim Wallis

Theologian, Writer, Political Activist & Racial Justice Advocate

Christ in Crisis: Why We Need to Reclaim Jesus

Tom Stewart

Editor, Harvard Business Review

Joe Pine

Expert on Experience Staging and Mass Customization

David Remnick

Editor, The New Yorker

John Zogby

Trendspotter & Leading Pollster

Spencer Wells

Geneticist, Anthropologist, Author, Entrepreneur, Adjunct professor at the University of Texas at Austin

Nicholas Burns

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

Richard Wolffe

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

President's Speaker Series - YouTube

Jeffrey Kluger

Journalist; Editor and Writer at TIME MAGAZINE. Author of 8 books, including APOLLO 13.

Tiffany Shlain

Founder of The Webby Awards; Emmy-Nominated Filmmaker, Bestselling Author, Internet Pioneer & Futurist

General Wesley Clark

Retired Four-Star Army General & Former NATO Supreme Allied Commander

Mia Farrow

Acclaimed Actress & Humanitarian Activist