<p>9/11 REMEMBERED: Philippe Petit spent years planning his illegal 1974 performance at the World Trade Center where he tight-rope walked between the Twin Towers. Petit looks back at the event and talks about what the destruction of the Towers meant for him.</p>
Intelligent. Optimistic. Curious.
Audio
What would make Christianity more vital in the 21st century? Theologian Hal Taussig says one answer is "A New New Testament," which combines Gnostic gospels with the traditional New Testament scriptures - all within the same book.
We made some particular choices about the music in hour four. Here's a note from Charles about the thinking that went into the score, and a Spotify playlist to explore.
Lawrence Krauss isn't only a famous physicist; he's also the subject, along with Richard Dawkins, of the documentary film "The Unbelievers." He tells Steve Paulson that science has replaced philosophy and religion as the place to deal with the Big Questions.
Some of the country's leading neuro-biologists are collaborating with Buddhist monks in an effort to understand the effects of meditation on the mind and the brain.
"Everything You Know About Indians Is Wrong"
Days before the launch of his latest project - a multi-media storytelling platform for the public - Jonathan Harris tells Anne Strainchamps about his inspiration and vision for Cowbird.
So, what is gender anyhow? Philosopher Judith Butler has been unpacking our notions of "he," "she" and "we" for the past 20 years. She stopped in to help us take stock of the state of gender in the North America.
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