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A few days ago, when passengers set off on a deep sea expedition in the Atlantic Ocean, they were aboard a vessel that many experts had already concluded was dangerously designed.
William Broad, a science correspondent for The Times, explains why he was worried from the start.
On today’s episode
William J. Broad, a science correspondent for The New York Times.

Background reading
What to know about the Titan, the vessel that went missing on Sunday on its way to the Titanic shipwreck site with five people aboard.
Three decades ago, a dive in the three-person submersible Alvin revealed not only an alien world but why people engage in such risky pursuits.
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We aim to make transcripts available the next workday after an episode’s publication. You can find them at the top of the page.
William J. Broad contributed reporting.
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