Last summer when Nancy Updike was reporting in Iraq, Sarah, an Iraqi woman in her 40s, was her interpreter. But it wasn't the first time Sarah had had that gig.

Ira Glass hands off the show to guest host Nancy Updike, via a quick cell phone call, as he heads out of town to report a story. Nancy isn't quite sure how how she feels about being given this new role... ambivalence not uncommon for the receivers of gifts.

Host Ira Glass speaks with reporter Larry Kaplow and producer Nancy Updike, who spent a month in Iraq as the US combat mission was ending, in August 2010, talking to Iraqis. They play excerpts from a conversation they had with a Shiite professor—who had pizza recently with a Sunni friend, and realized just how tense things still are in Iraq.

In the Middle East, hundreds and hundreds of tunnels connect the Gaza strip and Egypt, allowing supplies to bypass the Israeli blockade against Hamas-controlled Gaza. Producer Nancy Updike speaks with Ira about the tunnels, and plays tape from an interview she conducted with a tunnel owner.

For the last 13 years, the University of Montevallo in Alabama has held an event called "The Life Raft Debate," where several professors take the stage and each tries to convince the students that his or her discipline—chemistry, say, or communications—is the most essential field of study. But in 2007, a professor named Jon Smith decided that the debate itself needed saving.

The Erie Canal.

Because of the University, State College is in the only county in Pennsylvania where GDP grew in 2008. Producer Nancy Updike visited with local businesses and learned several tips for thriving at the nation's top party school.

Producer Nancy Updike speaks with Specialist Lindsay Freeland of the Oregon National Guard about the trips Freeland takes at night in Iraq, providing security for convoys heading to forward operating bases.

More stories of travelers and workers at a highway rest stop. The competition between Plattekill and Maine continues.

In Tehran in 2004, Omid Memarian confessed to doing things he'd never done, meeting people he'd never met, following plots he'd never heard of. Why he did that, and why a lot of other people have confessed to the same things, is all in the fine print. This American Life producer Nancy Updike tells the story.

The newspaper Military Times did a survey of 2000 active duty servicemen and women, asking them about the new president. Presented with the statement, "As president, Barack Obama will have my best interests at heart," 36 percent agreed...43 percent disagreed.

There's this haven on the U.S. railroad—the Amtrak Quiet Car. You can't yammer on your cell phone in the Quiet Car, or yuck it up with your friends, or even talk above a murmur.

In Scranton, there's a "Citizens for McCain" office. But really, it's a "Democrats for McCain" office; flipping Democrats is vital if McCain is going to win.

There are some situations where making judgments about people based on limited amounts of information is not only accepted, but required. One of those situations is open adoption, where birth mothers actually choose the adoptive parents for their child. TAL producer Nancy Updike talks to a pregnant woman named Kim going through the first stage of open adoption: Reading dozens of letters from prospect parents, all of whom seem utterly capable and appealing.

Producers Nancy Updike and Robyn Semien report on critters that can kill sleep: cockroaches and bedbugs.

Sometimes the inner voice telling us to do the wrong thing actually sounds like a voice. TAL producer Nancy Updike talks to people about the voices in their heads that persuade them to go astray.

This American Life producer Nancy Updike tells the story of Conrad Crane, the head of the U.S. Army Military History Institute.

This American Life producer Nancy Updike talks with a man, Eric Molinsky, about a weirdly heated argument he got into with a good friend, over corporate tax loopholes. Midway through, they both stopped to think: Why were they getting so upset over an issue they didn't really care about that much? And then they realized: Eric's ex-girlfriend was a political activist, and Eric's friend's ex-boyfriend was a hedge fund manager.