Jennifer Pahlka

Deputy Chief Technology Officer At The White House Office of Science and Technology Policy; Founder of Code for America

Recoding America: Why Government Is Failing in the Digital Age and How We Can Do Better

Dambisa Moyo

Global Economist, Author & Investor in the Future

Charles Leadbeater

Innovation Expert & Author

Michelle Rhee

Founder of StudentsFirst & Education Reform Advocate; Former D.C. Public Schools Chancellor

Jeremy Rifkin

Leading Global Technologist, Futurist, Authority on World Economic & Environmental Trends

Joseph Stiglitz

American Economist, Professor at Columbia University & Nobel Memorial Prize in Economic Sciences 2001

Malala Yousafzai

Youngest-Ever Nobel Prize Winner; Advocate for Girls' Education & Women's Equality; Author of the International Bestseller "I Am Malala"

Lawrence Summers

Professor & Former President of Harvard University; Former Secretary of the Treasury, Director of the National Economic Council, & Chief Economist of the World Bank

Wadah Khanfar

President & Co-founder of Al Sharq Forum & Chairman of Common Action Forum, Former Director-General of the Al Jazeera Network

Wadah Khanfar | This House Would Pressurise Israel to Exchange

Joe Scarborough and Mika Brzezinski

Hosts of "Morning Joe"

John Stossel

Emmy-Award Winning Journalist

Garry Kasparov

World Champion Chess Expert & Strategist; Chairman of the Human Rights Foundation based in New York

Parag Khanna

Managing Partner at FutureMap; Strategic Advisor to Governments & Global Companies; Bestselling Author; TED Speaker

Judge Greg Mathis

Civil Rights Activist, Television Personality

Charlie Rose

Anchor and Executive Editor

Gary White

CEO & Co-Founder of WaterEquity & Water.org with Matt Damon

John Oliver

Emmy-Winning Comedian, Best Known for "The Daily Show with Jon Stewart" & "Last Week Tonight"

Jonah Lehrer

Neuroscientist, New York Times bestselling author of "Imagine: How Creativity Works"

Dan Ariely

Behavioral Economist; Professor at Duke University; Author; Founding Member of The Center for Advanced Hindsight

Jacqueline Novogratz

Founder & CEO of Acumen Fund