Maria Popova

Editor of Brain Pickings; Author of "Figuring"

Dalia Mogahed

President and CEO, Mogahed Consulting, LLC; Author, "Who Speaks for Islam?"

Mariane Pearl

Widow of Journalist Daniel Pearl

Bernard Kouchner

Former Minister of Health of France; Founder of Nobel Peace Prize-Winning Médecins Sans Frontières

Jim Wallis

Theologian, Writer, Political Activist & Racial Justice Advocate

David Bellos

Translator

Seth Berkley

Global Health Expert and Epidemiologist; Senior Advisor to Brown University Pandemic Center

Seth Berkley - 3ie Evidence Dialogues Interview Series

Ingrid Newkirk

President, PETA

Tommy Thompson

Secretary of Health and Human Services (2001-2005)

Andrew Cohen

Founder, EnlightenNext

Peter Orszag

Economist, Vice Chairman of Corporate and Investment Banking at Citigroup, Inc. & Former Director of the Office of Management and Budget in the Obama Administration

James A. Joseph

Former Ambassador to South Africa; Leader in Residence, Hart Leadership Program at Duke University

Mia Farrow

Acclaimed Actress & Humanitarian Activist

Richard Engel

NBC News Chief Foreign Correspondent

Rebecca D. Costa

Sociobiologist & Author of The Watchman's Rattle

Roya Hakakian

Iranian Poet, Journalist & Author

Robert Thurman

International Authority on World Religions and Spirituality

Shirley Tilghman

Molecular Biologist; Pres., Princeton University

David Rothkopf

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

Gillian Caldwell

CEO of Global Witness