The Known Unknown

In May of 1990, law enforcement raided a warehouse in Douglas, AZ and a private home across the border in Agua Prieta, Mexico. Connecting the two buildings, they found a tunnel, more sophisticated than anything anyone had seen before. The tunnel in Douglas became a kind of prototype for many tunnels afterwards and a hallmark of the Sinaloa Cartel. The Tunnel Subscribe to SiriusXM Podcasts+ to listen to new episodes of 99% Invisible ad-free and a whole week early. Start a free trial now on Apple Podcasts or by visiting siriusxm.com/podcastsplus. Hosted by Simplecast, an AdsWizz company. See pcm.adswizz.com for information about our collection and use of personal data for advertising.

30 Jan 201946min

Santa Barbara, California, is a famously beautiful place, but if you look offshore from one of the city's many beaches, you'll see a series of artificial structures that stand out against the natural blue horizon. These oil platforms are at the center of a complicated debate going on right now within the environmental community about the relationship between nature and human infrastructure. Crude Habitat 99% Invisible’s Impact Design coverage is supported by Autodesk. The Autodesk Foundation supports the design and creation of innovative solutions to the world's most pressing social and environmental challenges. Learn more about these efforts on Autodesk's RedShift. Subscribe to SiriusXM Podcasts+ to listen to new episodes of 99% Invisible ad-free and a whole week early. Start a free trial now on Apple Podcasts or by visiting siriusxm.com/podcastsplus. Hosted by Simplecast, an AdsWizz company. See pcm.adswizz.com for information about our collection and use of personal data for advertising.

23 Jan 201935min

In the early 1950s, teenage students in Lake County, Indiana, got up from their desks, marched down the halls and lined up at stations. There, fingers were pricked, blood was tested and the teenagers were sent on to the library, where they waited to get a specialized tattoo. Each one was in the same place on the torso, just under the left arm, and spelled out the blood type of the student. This experimental program was called Operation Tat-Type. It was administered by the county and the idea was simple: to make it easier to transfuse blood after an atomic bomb. At the age of 16, producer Liza Yeager's grandmother, who went to school in Lake County, was permanently marked in anticipation of a nuclear catastrophe. Atomic Tattoos Subscribe to SiriusXM Podcasts+ to listen to new episodes of 99% Invisible ad-free and a whole week early. Start a free trial now on Apple Podcasts or by visiting siriusxm.com/podcastsplus. Hosted by Simplecast, an AdsWizz company. See pcm.adswizz.com for information about our collection and use of personal data for advertising.

16 Jan 201934min

99% Invisible is starting the year off with the sixth installment of our staff mini-stories. Kicking off 2019 are a set of tales about a perpetual lie about New York City, karaoke, a 50-foot-tall burning puppet, the result of a Canada-U.S. border dispute, and time thieves. Mini-Stories: Volume 6 Subscribe to SiriusXM Podcasts+ to listen to new episodes of 99% Invisible ad-free and a whole week early. Start a free trial now on Apple Podcasts or by visiting siriusxm.com/podcastsplus. Hosted by Simplecast, an AdsWizz company. See pcm.adswizz.com for information about our collection and use of personal data for advertising.

9 Jan 201948min

Magic: The Gathering is a card game and your goal is to knock your opponent down to zero points. But Magic: The Gathering also has a deep mythology about an infinite number of parallel worlds. Eric Molinsky of Imaginary Worlds looks at why this handheld card game has survived the onslaught of competition from digital games, and how the designers at Wizards of the Coast create a sense of story and world-building within a non-sequential card game. Subscribe to Imaginary Worlds on Apple Podcasts and RadioPublic Subscribe to SiriusXM Podcasts+ to listen to new episodes of 99% Invisible ad-free and a whole week early. Start a free trial now on Apple Podcasts or by visiting siriusxm.com/podcastsplus. Hosted by Simplecast, an AdsWizz company. See pcm.adswizz.com for information about our collection and use of personal data for advertising.

1 Jan 201930min

For the holidays this year, we're presenting a two-part Radiotopia feature with friend of the show (and host of The Allusionist podcast) Helen Zaltzman, each tackling a different aspect of this festive season. Subscribe to The Allusionist on Apple Podcasts and RadioPublic Subscribe to SiriusXM Podcasts+ to listen to new episodes of 99% Invisible ad-free and a whole week early. Start a free trial now on Apple Podcasts or by visiting siriusxm.com/podcastsplus. Hosted by Simplecast, an AdsWizz company. See pcm.adswizz.com for information about our collection and use of personal data for advertising.

26 Dec 201836min

It’s the end of 2018 and time for our annual Mini-stories episodes. These are my favorite episodes of the year to make. Mini-stories are fun, quick hit stories that don’t quite warrant a full episode and two months of hard reporting, but they’re great 99pi stories nonetheless. This week we have stories of 60s cult TV shows, semi-useless gadgets, woo woo miracles cures, and a modern Christmas tradition. Mini-Stories: Volume 5 Support Radiotopia today! Subscribe to SiriusXM Podcasts+ to listen to new episodes of 99% Invisible ad-free and a whole week early. Start a free trial now on Apple Podcasts or by visiting siriusxm.com/podcastsplus. Hosted by Simplecast, an AdsWizz company. See pcm.adswizz.com for information about our collection and use of personal data for advertising.

18 Dec 201843min

Roman talks with Avery about the lessons learned from making Articles of Interest Don’t buy that new piece of clothing and use a bit of that money to support Radiotopia Subscribe to SiriusXM Podcasts+ to listen to new episodes of 99% Invisible ad-free and a whole week early. Start a free trial now on Apple Podcasts or by visiting siriusxm.com/podcastsplus. Hosted by Simplecast, an AdsWizz company. See pcm.adswizz.com for information about our collection and use of personal data for advertising.

14 Dec 201811min