Stephen Walt

Robert and Renee Belfer Professor of International Affairs at Harvard University

Stephen M. Walt | Realism & Balance of Threat | GREAT MINDS

Tal Ben-Shahar

Best-Selling Author & Positive Psychology Expert

Amy Gutmann

United States Ambassador to Germany; Former President of UPenn

Kenneth Roth

Executive Director at Human Rights Watch

Rob Huebel

Actor, Comedian & Writer; Known for his Role in "Children's Hospital" and "Transparent"

Neil Giuliano

Gay Rights Activist & President and CEO of Greater Pheonix Leadership

Melissa Harris-Lacewell

Professor, Princeton University

Ingrid Newkirk

President, PETA

Eric Foner

Prominent Historian & Professor Emeritus of History at Columbia University

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

An Phung

Multimedia Journalist

David Bellos

Translator

Shashi Tharoor

Diplomat & Author; Former United Nations Under-Secretary-General

Bob Mankoff

Cartoon & Humor Editor; Humorist; President, CartoonCollections[.]com; Founder of The Cartoon Bank

Lisa Witter

Partner and Chief Change Officer, Fenton

Interview Lisa Witter (English)

Edward Tenner

Smithsonian Institution Distinguished Scholar & Author of "Why Things Bite Back" and "Our Own Devices"

Rebecca MacKinnon

Founding Director of Ranking Digital Rights

David Remnick

Editor, The New Yorker

Spencer Wells

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

General Wesley Clark

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