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Guests on the program have included elected public officials, political candidates, members of the military, film producers, outrageous bigots, scientists, authors, and many more. Guests are alphabetized by last name.

Following are some of the guests who have been on the program:

Jonathan Haber,

from and author of the new book “Critical Thinking”

Chris Hadnagy,

professional social engineer who gets paid to phish, vish, scam people and break in to places to test security

Kenneth Hahn,

Executive Director of GlobalRoutes

Sarah Haider,

an American writer, public speaker, activist and a founder of Ex-Muslims of North America, a community-building organization for those who have left Islam, where she advocates for acceptance of religious dissent.

Jonathan Haidt,

social psychologist and professor at New York University’s Stern School of Business

Catherine Hakim,

British sociologist and Senior Research Fellow at London School of Economics, author of the book “Erotic Capital.”

Joe Haldeman,

Vietnam veteran and science fiction writer whose best-known book is The Forever War

Roger Hallam,

environmental activist and co-founder of Extinction Rebellion

David Halperin,

Senior Fellow at United Republic

Aaron Hamlin,

Executive Director of the Center for Election Science

Shane Hankins,

Executive Director of

Mona Hanna-Attisha,

whistleblower of the Flint Water Crisis

Mike Hannahan,

Professor of Political Science at the University of Massachusetts

Kate Hanni,

Executive Director of

John Mark Hansen,

Professor of Political Science at the University of Chicago

John Hargrove,

Former Senior Killer Whale Trainer at two SeaWorld Parks who left and exposed the industry by starring in the BAFTA nominated documentary Blackfish, and author with Beneath The Surface

Johann Hari,

former writer for The Independent and The Huffington Post

Malcolm Harris,

freelance writer and editor at The New Inquiry

Sam Harris,

neuroscientist, philosopher

Amy Julia Harris,

investigative reporter for Reveal from The Center for Investigative Reporting

Dan Harris,

author of “Meditation for Fidgety Skeptics” and “10% Happier, and ABC News anchor

Thom Hartmann,

host of the Thom Hartmann program

Steven Hassan,

leading authority on cults and mind control

Claire Headley,

former Scientologist and employee of Scientology’s Sea Org who ultimately escaped in 2005

Gene Healy,

Senior Editor – Cato Institute

Denise Hearn,

co-author of the book The Myth of Capitalism: Monopolies and the Death of Competition

Terrance Heath,

Online Producer for Campaign for America’s Future

Joan Heffington,

Republican candidate for Kansas Governor, 2010

Janet Heimlich,

author of Breaking Their Will: Shedding Light on Religious Child Maltreatment

Richard Heinberg,

Senior Fellow of the Post Carbon Institute, author of Afterburn: Society Beyond Fossil Fuels

Vincent Hendricks,

Author of INFOSTORMS and founder of The Center for Information and Bubble Studies

Eitan Hersh,

Associate Professor of Political Science at Tufts University and author of the book “Politics is for Power”

Dan Heyman,

reporter for Public News Service

Clare Higgins,

Mayor of Northampton, MA, 2000-Present

Kristal High,

Paid consultant of the cable industry lobby

Jim Hightower,

Columnist, author, and activist

Jim Hill,

First African American Senator and Treasurer of Oregon, maybe best known for co-sponsoring the establishment of a holiday in honor of Martin Luther King, Jr. and passing the Anti-Apartheid Act

Kevin Hill,

Addiction psychiatrist and Assistant Professor of Psychiatry at McLean Hospital and Harvard Medical School, and author of the bookMarijuana: The Unbiased Truth about the World’s Most Popular Weed

Perez Hilton,

Gossip Journalist,

Frank A. von Hippel,

Professor at Northern Arizona University

Frank N. von Hippel,

Senior Research Physicist and Professor Emeritus at Princeton University’s Program on Science and Global Security

James Hirsen,

New York Times bestselling author & law professor who believes mandatory RFID microchipping may be in America’s future

Robert Hockett,

Professor or Law and Finance at Cornell University

Lori Hodgson,

former Scientologist of 30 years

Matt Hoh,

Iraq war veteran and former Foreign Service official

David Hone,

Lecturer in zoology at Queen Mary University of London

Steve Horwitz,

Charles A. Dana Professor of Economics at St. Lawrence University and Visiting Scholar at the Hohn H. Schnatter Institute for Entrepreneurship and Free Enterprise at Ball State University

Tansy Hoskins,

Activist & author of Stitched Up, The Anti-Capitalist Book of Fashion

Neil Howe,

author and managing director of Demography at Hedgeye Risk Management

Alan Huffman,

political opposition researcher

Coleman Hughes,

Fellow at the Manhattan Institute

Benjamin Hunnicutt,

Professor of Leisure Studies at the University of Iowa. He is also the author of Kellogg’s Six-Hour Day and Work Without End: Abandoning Shorter Hours for the Right to Work

Mara Hvistendahl,

former China correspondent for Science

Marc Hyden,

National Advocacy Coordinator for Conservatives Concerned About the Death Penalty

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