Alix Spiegel tells the story of Robert Dixon, who's in a maximum security prison in Vacaville California and is unlikely to ever get parole because of his score on the psychopath test. The test also is called "the checklist" or, more formally, the PCL-R, which stands for "Psychopathy Check List—Revised." Alix tells the story of its creation and reports that the man who created the test, Bob Hare, is concerned at how it's being used today in the criminal justice system.

Ira explains how a man named Chris Butler created a private detective agency where the investigators were good-looking soccer moms. Their publicist invited a reporter named Pete Crooks from Diablo magazine to do a ride-along with the P.I.

We asked for your stories about amusement parks. Three hundred of youcalled in, with stories of fear, floating carnies and, um, vomit.

Hyder Akbar was a teenager living with his family in the Bay Area when president Hamid Karzai asked Hyder's dad to return to Afghanistan and become an official in the new government. Hyder recorded audio diaries that became two episodes of our show, in 2002 and 2003, both produced by Susan Burton.

One day a successful cancer researcher named Jonathan Brody gave a talk at his alma mater, about how people in his field need to think outside the box if they're going to find a cure. Afterward Jonathan's old music teacher Anthony Holland shared an idea that was way out of the box: Killing cancer cells with electromagnetic waves. Gabriel Rhodes tells what happened next.

Ever wondered what you might do with 18 days of rest after serving 15 months in combat? Reporter David Finkel followed one group of soldiers in Iraq for 15 months, and reported all of it in his book The Good Soldiers. Here is our radio version of one of the chapters in his book, where we hear actors read aloud what soldiers and families of soldiers told David about their break.

David Rakoff tells the story of a contract between a son and his visiting mother. David Rakoff is the author of several books including Half Empty.

Host Ira Glass speaks with Columbia University professor Peter Coleman, who shares some surprising details about the battle surrounding the abortion debate in Boston during the 1990s. We learn what secret meetings between the warring groups could accomplish, and what they couldn't.

Nancy Updike reports from Cairo, Egypt about what people were doing there this week, namely: going to meetings to create their new democracy.

Ira speaks with Shannon Grande, a teacher at Rise Academy in Newark, about a seventh grader who had all sorts of problems with behavior and hygiene and schoolwork. In order to help turn him around, Grande had to harness the power of peer pressure for good.

Jeanne Darst was 16 when her parents split up. But it turned out they just weren't too skilled at the whole divorce thing.

Producer Nancy Updike shares a pattern that she's noticed recently: eleven steps that Middle Eastern dictators have been taking on the path to losing power.

In an effort to understand the physical and emotional changes middle school kids experience, Ira speaks with reporter Linda Perlstein, who wrote a book called Not Much Just Chillin' about a year she spent following five middle schoolers. Then we hear from producer Alex Blumberg, who was a middle school teacher in Chicago for four years before getting into radio.

Sarah takes us to Mt. Pleasant, PA, where a gas exploration company called Range Resources has leased 95% of the township's land.

Host Ira Glass interviews a 14-year old named Annie, who emailed us asking if we would do a show about middle school. She explains why exactly the middle school years can be so daunting.

Ira plays a recorded example of American-style democracy, a school board meeting in Tucson, recorded by a high school teacher, Sarah Bromer.

Host Ira Glass walks through a Kansas City Missouri amusement park called Worlds of Fun with Cole Lindbergh, who had a season pass to the park as a little kid, starting working there summers at 14, and then just stayed. Now he's a full-time, year-round employee, running the games department.

Ira Glass plays clips from a documentary film called Please Vote for Me, by Weijun Chen. It follows a third grade class in central China in the very first election they've ever had or witnessed.

Producer Ben Calhoun heads to his home state of Wisconsin, a place currently turned against itself in the form of Senate recall elections. Ben found that the old way of doing politics in Wisconsin has been flipped completely upside down.