Nearly three out of four U.S. communities add fluoride to their water. Officially, the compound strengthens teeth and helps prevent cavities—but recent studies have suggested it might increase cancer risks and lower IQ. Is fluoridated water a medical marvel, or a poison? And why is the U.S. government afraid to address the evidence against it?
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Fluoride Pt. 1

The world’s most controversial events, and the complex beliefs behind them. From Bigfoot sightings to bitcoin takeovers, alien landings to assassinations, who’s shaping the narrative — and why? Conspiracy Theories is a Spotify Podcast. New episodes Wednesdays.

Society & Culture

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History

Philosophy

Places & Travel

True crime

October 9th, 1995, Amtrak's 12-car Sunset Limited train was powering through the Arizona desert with 258 passengers on board when it suddenly separated from the tracks. The horrible derailment left one person dead and dozens of passengers injured and stranded in the desert. But it wasn't an accident. And more than 25 years later, investigators still have no leads.
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The Sunset Limited Train Derailment

In September 1944, as World War II raged overseas, the small town of Mattoon, Illinois felt under attack. Dozens of people reported smelling a sickening sweet odor drift into their bedroom at night. It allegedly smelled like gardenias and left them feeling ill and, in some cases, paralyzed. The town’s leading theory was that a madman was running around town spraying a toxic gas through people’s windows at night.
Conspiracy Theories is now on Instagram @theconspiracypod and TikTok @conspiracy.pod! Follow us to keep up with the show and get behind-the-scenes updates from Carter and the team. 
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The Mad Gasser of Mattoon

“You have been watched: Failure to comply and you shall suffer: no one can help: no one can protect you: Obey: Obey:” 
In 1976, anonymous letters started appearing in mailboxes around Circleville, Ohio. Someone was watching the town’s residents. They called themselves the Circleville Writer and claimed to know intimate details about their private lives: secrets they threatened to expose. Investigators tried to find the person responsible, but the letters continued for almost twenty years. Has the culprit finally been identified?
Conspiracy Theories is now on Instagram @theconspiracypod and TikTok @conspiracy.pod! Follow us to keep up with the show and get behind-the-scenes updates from Carter and the team. 
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The Circleville Letters

If you find the world bewildering, but also sometimes enjoy being bewildered by it, Search Engine is here for you. Search Engine is an explainer show that tackles mysteries and conspiracies, big and small. On this episode: is host PJ Vogt the victim of an international sushi scam?
Search Engine was named one of the top podcasts of the year by Time Magazine, The Economist, and New York Magazine (Vulture). To find more episodes of the show or to submit a mystery of your own, head over to pjvogt.com.
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Introducing: Search Engine

What happens when a teenager goes missing in the world’s smallest, and supposedly safest, country? Emanuela Orlandi’s sudden disappearance remains the only missing person’s case in Vatican City, yet more than 40 years later we still have no idea what really happened behind the papal state’s walls. 
After the story, stick around for an exclusive interview with the director of The First Omen, Arkasha Stevenson!
This episode is brought to you by Twentieth Century Studios' the First Omen. Experience the most terrifying movie of the year, and what critics are calling “deliciously disturbing” only in theaters April 5th.
Conspiracy Theories is now on Instagram @theconspiracypod and TikTok @conspiracy.pod! Follow us to keep up with the show and get behind-the-scenes updates from Carter and the team.
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Fluoride Pt. 1

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