Leif Pagrotsky

Member of Parliament, Sweden

Richard Dowden

Director, Royal African Society

Dale Jamieson

Professor, New York University

Robert Lacey

Author, "The Kingdom"

Brian Hoffstein

Contributing Writer

Cody Adams

Managing Editor of The Floating University.

James Bianco

President of Bianco Research, L.L.C., an Arbor Research & Trading, LLC affiliate

Sal Arnuk

Partner, co-founder and co-head of equity trading of Themis Trading LLC,

Robert Cialdini

New York Times Best-Selling Author; The Foundational Expert in the Science of Influence & Persuasion

Daniel Altman

Sports Analytics & Strategy Expert

David Smick

Chairman & CEO, Johnson Smick International, Inc.

Paul Wolfowitz

Foreign & Security Policy Expert

Gillian Sorensen

Senior Advisor, UN Foundation

Pedro Solbes

European Politician & Finance Expert

Martin Redrado

Former Governor of The Central Bank of Argentina

Planet Money

NPR's Multimedia Team on the Global Economy

Robert Greene

New York Times Bestselling Author of "The 48 Laws of Power," "The Art of Seduction," "The 33 Strategies of War," and "The 50th Law"

Seth Berkley

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

Seth Berkley - 3ie Evidence Dialogues Interview Series

Francis Tapon

Author, Harvard MBA, and World Traveler

Pastor Rick Warren

Pastor & Author of "The Purpose-Driven Life"

Irwin Kula

Irwin does challenge the status quo in the American spiritual landscape.

Peter Thiel

Former CEO and Co-founder of PayPal; Technology Entrepreneur, Investor and Philanthropist

Sebastian Mallaby

Director of the Maurice R. Greenberg Center for Geoeconomic Studies and the Paul A. Volcker Senior Fellow for International Economics at the Council on Foreign Relations

The Power Law: Venture Capital and the Making of the New Future

Gerry Adams

President, Sinn Fein

D. Quinn Mills

Consultant; Professor Emeritus, Harvard Business School

Chris Skinner

Independent Commentator on the Financial Markets; Blog at Financser

John Gieve

Former Deputy Governor for Financial Stability at the Bank of England; Esteemed Economist

Barry Ritholtz

CEO and Director of Equity Research, and author of Bailout Nation.

Thomas Manning

CEO of Dun & Bradstreet; Global Business Leader & Expert on China

Michael Ellsberg

Copywriter & Author of "Joyful Pessimism: A Memoir of Sex, Mental Illness, and Philosophy"