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

George Mitchell

Global Diplomat, Peace Negotiator & Leadership Expert; Former Senate Majority Leader Who Enjoyed Bipartisan Respect

Dambisa Moyo

Global Economist, Author & Investor in the Future

Janine di Giovanni

Author, Award-Winning Foreign & War Correspondent; Visiting Fellow at Yale Law School & Executive Director The Reckoning Project

Seriously Entertaining: Janine di Giovanni on "All That Glitters"

Vali Nasr

Professor of International Affairs & Middle East Studies at Johns Hopkins University

Islamic Leviathan: Islam and the Making of State Power (Religion and Global Politics)

Michelle Rhee

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

Charles Leadbeater

Innovation Expert & Author

Alexandra Cousteau

Environmental Activist, Storyteller & Ocean Advocate

Jeremy Rifkin

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

Harold Ford, Jr.

Former U.S. Representative & Fox Political Contributor; Co-Host of The Five; Regional President at PNC Bank (NY)

PNC Bank Appoints Harold Ford, Jr. Regional President For New York

Joseph Stiglitz

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

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

Andrea Mitchell

Host of MSNBC’s "Andrea Mitchell Reports" & Chief Foreign Affairs Correspondent for NBC News

Andrea Mitchell - Celebrating 15 years of "Andrea Mitchell Reports"

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

Amy Myers Jaffe

Leading Expert on Global Energy Policy & Sustainability

Judge Greg Mathis

Civil Rights Activist, Television Personality

Lawrence O'Donnell

Political Analyst, Author & Host of "The Last Word with Lawrence O'Donnell"

Charlie Rose

Anchor and Executive Editor