5x13 - Chris Mooney, Ed Young

January 26, 2009

Obama changes Bush's policy on science, and Ed Young thinks married people should have more sex.

5x14 - Philippe Petit

January 27, 2009

Documentary, "Man on Wire"

5x15 - Paul McCartney, Denis Dutton

January 28, 2009

5x16 - John Podesta

January 29, 2009

President and CEO, Center for American Progress

5x17 - Dan Zaccagnino

February 2, 2009

The government collapses in Iceland, and Stephen gets mad at Dan Zaccagnino.

5x18 - Henry Louis Gates Jr.

February 3, 2009

Henry Louis Gates, Jr. says Abraham Lincoln was always against slavery, but he wasn't a fan of black people.

5x19 - Steve Martin

February 4, 2009

Actor, "The Pink Panther 2"

5x20 - James Surowiecki, Jonah Lehrer

February 5, 2009

Stephen salutes the Boy Scouts, and Jonah Lehrer discusses the neuroscience of decision-making.

5x21 - TV on the Radio

February 9, 2009

Stephen welcomes musical guest TV On The Radio.

5x22 - Robert Ballard

February 10, 2009

It's tough times for the Republican Party, and Stephen gives a shout out to a former employee.

5x23 - Eleanor Holmes Norton, Steven Pinker

February 11, 2009

New York Times article, "My Genomic Self"

5x24 - David Ross, Ed Colbert, Adam Gopnik

February 12, 2009

Adam Gopnik claims that faith and fear no longer rule our lives because of Abraham Lincoln and Charles Darwin.

5x25 - Father James Martin, Helen Fisher

February 23, 2009

Tonight Stephen welcomes the chief scientific advisor for chemistry.com, anthropology professor and author of Why Him? Why Her?: Finding Real Love By Understanding Your Personality Type, Helen Fisher.

5x26 - Cliff Sloan

February 24, 2009

Cliff Sloan believes that Marbury v. Madison is significant because it established the rule of law.

5x27 - John Fetterman

February 25, 2009

Mayor John Fetterman believes Braddock, PA is a great place to spend some of the stimulus money.

5x28 - Kris Kristofferson

February 26, 2009

Stephen wants to know how Kris Kristofferson can be a country musician and a liberal at the same time.

5x29 - David Byrne

March 2, 2009

Late at night, who does David Byrne fear David Byrne is?

5x30 - Mark Bittman

March 3, 2009

President Obama taxes the rich to pay for universal health care, and South Carolina may finally end gun prostitution.

5x31 - Carl Wilson

March 4, 2009

Carl Wilson tries to understand the popularity of Celine Dion in "Let's Talk About Love" and will NASA name part of the space station after Stephen if he changes his name to Stephen Urine Filtration System?

5x32 - Steven Johnson

March 5, 2009

Steven Johnson talks about Joseph Priestley, the man who first realized that plants actually create the oxygen we breathe.

5x33 - Lisa Hannigan

March 9, 2009

Lisa Hannigan sewed the cover, liner notes and lyrics of her album "Sea Sew."

5x34 - William Gerstenmaier, Dr. Jay Keasling

March 10, 2009

Tonight Stephen welcomes microbiologist and member of the Joint BioEnergy Institute, Dr. Jay Keasling. Also Stephen talks with NASA's associate administrator for space operations Bill Gerstenmaier about the Kepler Probe and other space exploration.

5x35 - Howard Fineman

March 11, 2009

Tonight Stephen welcomes Newsweek correspondent and author of 'The Thirteen American Arguments: Enduring Debates that Define and Inspire Our Country', Howard Fineman.

5x36 - Simon Johnson, Peter Singer

March 12, 2009

Peter Singer urges Stephen to give money to poor people rather than enjoying it himself.

5x37 - Jonathan Chait, Neil Gaiman

March 16, 2009

Tonight Stephen welcomes the author of 'The Graveyard Book'.

5x38 - David Grann

March 17, 2009

Tonight Stephen welcomes the author of 'The Lost City of Z: A Tale of Deadly Obsession in the Amazon'.

5x39 - Juan Cole

March 18, 2009

Tonight Stephen welcomes the author of 'Engaging the Muslim World'.

5x40 - John McCardell

March 19, 2009

Tonight Stephen welcomes the president of Choose Responsibility.

5x41 - Derrick Pitts

March 30, 2009

The guest tonight is Derrick Pitts, Chief Astronomer at The Franklin Institute.

5x42 - David Plotz

March 31, 2009

David Plotz, Author of 'Good Book LP' talks to Stephen tonight.

5x43 - Dambisa Moyo

April 1, 2009

Author of "Dead Aid", Dambisa Moyo is the guest on tonight's show.

5x44 - Biz Stone

April 2, 2009

One of the co-founders of Twitter is the guest for tonight's show.

5x45 - Tom Brokaw, Rich Lowry

April 6, 2009

Tonight Stephen welcomes the co-author of Banquo's Ghosts, Rich Lowry.

5x46 - Queen Noor

April 7, 2009

Tonight Stephen welcomes Jordan's Queen Noor.

5x47 - Phil Bronstein

April 8, 2009

Tonight Stephen welcomes the editor at large for the San Francisco Chronicle, Phil Bronstein.

5x48 - Bart Ehrman

April 9, 2009

Tonight Stephen welcomes Bible expert and author of Jesus, Interrupted: Revealing the Hidden Contradictions in the Bible (And Why We Don't Know About Them), Bart Ehrman.

5x49 - Sunita L. Williams, Susie Orbach

April 14, 2009

Tonight Stephen welcomes psychotherapist and author of Bodies, Susie Orbach. Also, Stephen talks with NASA's Deputy Chief, Astronaut Office at the Johnson Space Center, Sunita Williams about the naming of the new node on the International Space Station.

5x50 - Jim Lehrer

April 15, 2009

Tonight Stephen welcomes the anchor of PBS' NewsHour and author of Oh, Jonny, Jim Lehrer.

5x51 - Kanishk Tharoor, Doug Kmiec

April 16, 2009

Tonight Stephen welcomes the former head of the Office of Legal Council for both President Reagan and George Bush Sr., and author of Can a Catholic Support Him? Asking the Big Questions about Barack Obama, Doug Kmiec. Also, Stephen talks with the associate editor for opendemocracy.net, Kanishk Tharoor.

5x52 - Ken Quinn, Sheriff Joe Arpaio

April 20, 2009

Sheriff Joe Arpaio denies that he focuses too much on illegal immigration.

5x53 - Coach Mike Kryzewski

April 21, 2009

Tonight Stephen talks with Duke University men's basketball coach Mike Krzyzewski.

5x54 - Ira Glass

April 22, 2009

Tonight Stephen talks with host of This American Life, Ira Glass.

5x55 - Elizabeth Bintliff

April 23, 2009

Tonight Stephen welcomes the West Africa Program Officer for Heifer International, Elizabeth Bintliff.

5x56 - The Decemberists

April 27, 2009

Tonight Stephen welcomes musical group The Decemberists.

5x57 - David Gross

April 28, 2009

Tonight Stephen welcomes journalist and author of 'Dumb Money: How Our Greatest Financial Minds Bankrupted the Nation', Daniel Gross. Also, Stephen talks with war correspondent Richard Engel.

5x58 - David Kessler

April 29, 2009

Tonight Stephen welcomes former FDA commissioner and author of The End of Overeating: Taking Control of the Insatiable American Appetite, David Kessler.

5x59 - Jonathan Alter, Ethan Nadelman

April 30, 2009

Tonight Stephen welcomes the founder and executive director of the Drug Policy Alliance, Ethan Nadlemann.

5x60 - J.J. Abrams

May 4, 2009

The Prescott Group needs a bailout, and J.J. Abrams reveals clues to Stephen's Persian Gulf mystery.

5x61 - Cliff Sloan, Paul Rieckhoff

May 5, 2009

Cliff Sloan believes that Marbury v. Madison is significant because it established the rule of law and Paul Rieckhoff wants to make sure returning veterans get education, employment and health care support.

5x62 - Laurie Garrett

May 6, 2009

President Obama's approval numbers are at 67%, and public health expert Laurie Garrett is here to shed some light on the swine flu.

5x64 - Jeff Daniels

May 11, 2009

Tonight Stephen welcomes actor Jeff Daniels Also, Stephen talks with the vice president of policy at Demos.org, Tamara Draut about credit cart reform.

5x65 - Ron Howard

May 12, 2009

Tonight Stephen welcomes the producer & director of Angels & Demons, Ron Howard. Also, Stephen talks with the head of Latin American Division of the Council on Foreign Relations, Julia Sweig about Cuba.

5x66 - Michael Pollan

May 13, 2009

Tonight Stephen welcomes the author of In Defense of Food: An Eater's Manifesto, Michael Pollan.

5x67 - Yusuf Islam

May 14, 2009

Donald Trump allows Miss California to keep her crown, the DonorsChoose competition continues, and Yusuf performs.

5x68 - Meghan McCain

May 18, 2009

Meghan McCain loves the Republican Party and wants to save it from the people trying to make it more extreme.

5x69 - Walter Kirn

May 19, 2009

Republicans find a way to make us love them again, and a Difference Maker stands up to the government.

5x70 - Seth Shostak

May 20, 2009

Torture memo author John Yoo gets a newspaper column, and Nancy Pelosi says the CIA lied to her.

5x71 - Green Day

May 21, 2009

Stephen reveals most of the Indian election results, and Green Day talks about their album, "21st Century Breakdown."

5x72 - Jeffrey Toobin, Sen. Byron Dorgan

June 1, 2009

Republicans could lose their Latino voter, and you can see Stephen's Persian Gulf destination from Sarah Palin's house.

5x73 - Katty Kay

June 2, 2009

The FDA challenges medical claims made by Cheerios, and Jim Moran protects kids from erectile dysfunction advertising.

5x74 - Eric Schlosser

June 3, 2009

California allows some gay couples to stay married, and Obama invites Iran to celebrate 4th of July.

5x75 - Dag Soderberg, David Byrne

June 4, 2009

Wikipedia takes on the Church of Scientology, and the latest on abstinence-only education will be worth the wait.

5x76 - General Raymond Odierno

June 8, 2009

General Ray Odierno steps up to the plate to be Stephen’s first guest in Iraq.

5x77 - Specialist Tareq Salha, Sgt. Robin Balcom

June 9, 2009

Stephen welcomes Sergeant Robin Balcom and Specialist Tareq Salha to his international desk of wisdom and truthiness.

5x78 - Lieutenant General Charles Jacoby

June 10, 2009

Tom Hanks and Stephen prepare a care package, and Charles H. Jacoby Jr. picks his favorite soldier.

5x79 - Stephen broadcasts from Iraq, Command Sgt. Major Frank Grippe

June 11, 2009

George W. Bush praises the troops, and Frank A. Grippe orders his officers to sing the Army song.

5x80 - Austan Goolsbee

June 15, 2009

Stephen gives advice to the next leader of North Korea, and asks Austan Goolsbee if his arm gets tired from throwing money at problems.

5x81 - Karim Sadjadpour, Jim Rogers

June 16, 2009

According to polls, 120% say the Iranian election wasn't rigged, and Jim Rogers wants to reduce Duke Energy's carbon footprint.

5x82 - Joshua Micah Marshall

June 17, 2009

Sonia Sotomayor belongs to an exclusive women's-only club, and Joshua Micah Marshall won't be doing the pointing and talking.

5x83 - Paul Muldoon

June 18, 2009

Someone finally agrees to accept Gitmo detainees, and Stephen nails poet Paul Muldoon.

5x84 - Simon Schama

June 22, 2009

Stephen suggests punching randomly until we find the enemy among us, and Simon Schama writes a history of the future of America.

5x85 - Howard Dean, David Kilcullen

June 23, 2009

David Kilcullen fights wars by taking a local approach to combat smaller guerrilla movements.

5x86 - Matthew Crawford

June 24, 2009

The Jonas Brothers don't abstain from making awesome rock, and Matthew Crawford believes in working with his hands.

5x87 - Jim Fouratt

June 25, 2009

ABC turns their network over to Barack Obama, and Jim Fouratt meets the leader of the gay shame movement.

5x88 - Neil DeGrasse Tyson

June 29, 2009

Neil deGrasse Tyson tries to make science accessible to whomever wants to reach out and touch it.

5x89 - Alexi Lalas, Kevin Mattson

June 30, 2009

Stephen questions whether America should embrace soccer, and Kevin Mattson thinks Jimmy Carter was underappreciated.

5x90 - Nicholas Kristof

July 1, 2009

The Supreme Court takes its recess, and Nicholas Kristof discusses "It's Time to Learn From Frogs" after crossing five lanes of busy traffic.

5x91 - Ed Viesturs

July 2, 2009

Congress passes a renewable energy bill, and climber Ed Viesturs scales Stephen's ego.

5x92 - Paul Rieckhoff, Paul Krugman

July 13, 2009

The Sotomayor confirmation hearings begin, and New York Times columnist Paul Krugman knows a lot about money.

5x93 - Leymah Gbowee

July 14, 2009

Stephen suggests looking for change in the folds of Barney Frank, and asks Leymah Gbowee where Liberia is.

5x94 - Douglas Rushkoff

July 15, 2009

There's bad news for people with target-shaped birthmarks, and Douglas Rushkoff lets Jews and Freemasons off the hook.

5x95 - Edmund Andrews

July 16, 2009

Stephen is emotionally dead inside, and Ed Andrews should write about teen vampires if he wants to get out of debt.

5x96 - Geoffrey Canada, Bob Park

July 20, 2009

Geoffrey Canada can't find any area where white men are being disproportionately victimized and Bob Park doesn't understand why humans need go to space when robots can do a better job.

5x97 - Dr. Aaron Carroll

July 21, 2009

Stephen will be the mighty oak when he investigates Acorn, and Aaron Carroll believes America should have a single-payer system.

5x98 - Matthew Waxman, Chris Anderson

July 22, 2009

The truth behind the CIA's secret assassination squad is revealed, and Chris Anderson talks about a future economy where everything is free.

5x99 - Zev Chafets

July 23, 2009

The British announce plans to cut and run, Tom Vilsack drops out of the presidential race, and Zev Chafets angles for a Christmas present.

5x100 - Movits!

July 27, 2009

A report on tasers may shock you, and Swedish band Movits! helps Stephen put his Ikea futon together

5x101 - Arianna Huffington

July 28, 2009

Arianna Huffington was born in the United States, but she cultivated an accent to give herself an air of being an ethnic minority.

5x102 - Kevin Baker

July 29, 2009

Lance Armstrong comes in third in the Tour de France, and Kevin Baker says Obama is the new Hoover.

5x103 - Kathryn Bigelow

July 30, 2009

Kathryn Bigelow's war movie, "The Hurt Locker," is getting great reviews, despite not having explosions and ear-splitting sound effects.

5x104 - General Anthony Zinni

August 3, 2009

President Obama finds a way to pay for health care, and General Anthony Zinni will wax Stephen's chest.

5x105 - Kurt Andersen

August 4, 2009

According to Kurt Andersen, the economic and health crises give Americans a brief chance to get things where they want them.

5x106 - Kris Kobach

August 5, 2009

Kris Kobach wants to fight illegal immigration on the local level and reward the people willing to come to this country legally.

5x107 - Meryl Streep

August 6, 2009

Stephen reviews the movies that are destroying America and talks to Meryl Streep about her role as Julia Child.

5x108 - Sen. Barbara Boxer

August 10, 2009

Vladimir Putin returns to the spotlight, and Stephen interviews Barbara Boxer with deaf suspicion.

5x109 - Jonathan Cohn

August 11, 2009

Afghanistan prepares for Bring Your Rocket Launcher to Work Day, and Jonathan Cohn explains why America's having a health care crisis.

5x110 - Mark Johnson

August 12, 2009

Americans speak Glenn Beck's mind at town hall meetings, and Mark Johnson spreads peace through music.

5x111 - Mark Devlin

August 13, 2009

Glenn Beck loses his sponsors, and Mark Devlin uses giant balloons to life telescopes to the edge of space.

5x112 - Bill McKibben

August 17, 2009

Reporters get so desperate they'll even work for a newspaper, and Bill McKibben lowers carbon dioxide levels by not exhaling when he talks.

5x113 - Robert Wright

August 18, 2009