We sent a reporter named Dan Grech to the Hundred Year Starship Public Symposium, which aims to tackle the technological problems related to interstellar space travel. And as host Ira Glass explains, Dan found this gathering to be way more adventurous than your average scientific conference.

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.

It's hard to give things up. Host Ira Glass tells the story of Walter, a three-year-old boy who had to give up his pacifier, and then, wanting comfort, asked all the adults around him to tell the stories of when they gave up their pacifiers.

Host Ira Glass talks to someone who escaped from the twin towers with a minute to spare and someone who lost her husband on 9/11. Both say they try to avoid 9/11 commemorations.

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.

Host Ira Glass tells the story of Florencia de Benito Juarez, a small town in Mexico where a new drug gang recently took over. They promised peace and tranquility, and for the most part, they're making good on those promises.

There's a derogatory term in Silicon Valley for companies that amass huge troves of patents and make money by threatening lawsuits: "patent trolls." When Jeff Kelling's Internet company Fototime was sued - along with more than 130 other companies - for violating someone's patent, he wondered if it was a troll (which the company denies), and then settled out of court.

Host Ira Glass tells the stories of two professors, each making a calculation that no one had made before. One gets acclaim.

A few years back, when he and his family were driving home from a vacation in Texas, John Nova Lomax realized that the police were aggressively tailing him. And he was definitely not prepared for the reason they pulled him over.

Host Ira Glass plays clips of interviews with several people whose dads have tried reach out to them the best way they know how, which often means...awkwardly.

Host Ira Glass speaks with former FBI agent Bill Tobin about police collusion with organized crime in 1970s Chicago. It turns out that old boys networks like the mob pull in good and bad cops alike.

Ira explains that when the radio staff decided to take a test that reveals who is a psychopath, very quickly everyone came to believe that the highest score would go to either Robyn, Jane, or him.

Host Ira Glass talks to Governor Jay Nixon of Missouri on a press conference he held to announce the creation of just one job.

Ira tells what happened this week to Dan Curry in Odessa Texas on Wednesday, to eight-year-old Ruby Melman on Sunday in New Jersey, to Beau O'Reilly at a bike store in Chicago on Saturday, to Theodosha Alexander at the World Trade Center site on Thursday, to Dr. Wade Gordon in Afghanistan on Thursday, to a high school class at the Grand Canyon on Wednesday, and at a bar in New York City on Saturday.

Host Ira Glass talks about the infamous line in the band Van Halen's contract insisting that the groups' dressing room include a bowl of M&Ms with all the brown M&Ms removed. Ira used to think this request was just petulant rock-star behavior.