The demographics of the United States are changing: how does the latest wave of immigration fit into the historical pattern?
Intelligent. Optimistic. Curious.
Audio
Stephen Marglin is a professor of economics at Harvard and the author of "The Dismal Science: How Thinking Like an Economist Undermines Community."
Is science really open to every good idea? Controversial biologist Rupert Sheldrake says modern science is mired in various dogmas - boundaries you're not supposed to cross, at least if you value your job and your reputation.
Sarah Bakewell is the author of “How to Live” an unorthodox biography of the great French philosopher and essayist Montaigne.
Former Senator Bob Kerrey talks with Steve Paulson about one bloody night in Vietnam that has haunted him for decades.
Slavoj Zizek is the "world's hippest philosopher," says the Telegraph. Zizek talks about the hidden atheism of Christianity, the danger of poets in power, and the limits of capitalism.
Steven Kotler spurned religion until he came down with Lyme Disease and spent three years on the couch. Then a friend took him surfing and he began to get better. Surfing became his religion.
Temple Grandin worries about pets in our modern society; critiques Cesar Millan's techniques as being appropriate only for large unrelated packs of dogs; and opposes the breeding of so-called criminal dogs.
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