Podcast:The Daily Published On: Thu Jun 22 2023 Description: 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.Guest: 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.For more information on today’s episode, visit nytimes.com/thedaily. Transcripts of each episode will be made available by the next workday. Unlock full access to New York Times podcasts and explore everything from politics to pop culture. Subscribe today at nytimes.com/podcasts or on Apple Podcasts and Spotify.