Talk of the Nation

Generations of physicists have claimed that time is an illusion. But not all agree. In his book Time Reborn: From the Crisis in Physics to the Future of the Universe, theoretical physicist Lee Smolin argues that time exists--and he says time is key to understanding the evolution of the universe.

Scientists reported this week in the journal Cell that they had used somatic cell nuclear transfer techniques to create a source of embryonic stem cells from the skin cells of a patient. George Daley, director of the stem cell transplantation program at Boston Children's Hospital, and Josephine Johnston of the Hastings Center discuss the research.

A report from the UN Food and Agriculture Organization says insects offer a huge potential for improving the world's food security. Peter Menzel, co-author of Man Eating Bugs, describes some insect-based cuisine and the western aversion to creepy-crawly snacks.

As the death toll in Syria climbs and critics blast the Obama administration for not taking more decisive action, former ambassador Christopher Hill points instead to a failure of diplomacy in an op-ed in the New York Times. Hill talks about what the U.S. faces in facilitating talks between the regime and Syrian rebels.

As the summer travel season approaches, air travel provides a barometer for the health of the U.S. economy — and airlines report they're having a good year. After years of financial troubles, industry representatives hope U.S. travelers are more willing to fly. NPR senior business editor Marilyn Geewax explains what summer travel tells us about the health of the economy.

Days after the marathon bombing, officials established the One Fund for Boston to assist victims and their families. Attorney Ken Feinberg, who managed similar funds after Sept. 11 and Virginia Tech and is managing this fund, says there's no easy way to decide who gets how much of the $30 million that's been donated.

Transcript

NEAL CONAN, HOST:

Transcript

NEAL CONAN, HOST:

This is TALK OF THE NATION. I'm Neal Conan in Washington. Today as part of our Looking Ahead series, we'll talk with writer Chris Hedges, former New York Times foreign correspondent and old friend and colleague who's joined us many times over the years, going back to what's probably still his best known book, "War Is a Force That Gives Us Meaning."

Transcript

NEAL CONAN, HOST:

This is TALK OF THE NATION. I'm Neal Conan.

The ongoing conflict between North Korea and South Korea is the legacy of the Korean War, which can help explain relations between the two countries. In a new book, historian Victor Davis Hanson discusses how the strategies of U.S. Gen. Matthew Ridgway helped to turn around what appeared to be "a lost war."

Hanson, author of The Savior Generals, tells NPR's Neal Conan that although the three-year war "ended right where it began," it did allow for South Korea to flourish as a democracy.

Telemedicine is nothing new, but advancements in technology have made it even more widely available. Neurologists can now treat Parkinson's patients from miles away, therapists can reach service members overseas, and general practitioners can work in rural areas without actually going there at all.

NPR's Neal Conan reads from listener comments on previous show topics, including postcards from New Orleans and our talk with astronaut Buzz Aldrin.

The trial of Jodi Arias, convicted of murdering her boyfriend, has become a national media sensation. Former Law and Order producer Robert Nathan and authors Laura Lippman and Walter Mosley explore why Americans are so drawn to real-life courtroom dramas.

Retailers are under pressure after a building collapse killed more than 1,100 garment workers in Bangladesh. But global demand for inexpensive clothing shows no sign of abating. The New York Times' Steven Greenhouse and Elizabeth Cline, author of Overdressed: The Shockingly High Cost of Cheap Fashion, unravel the prospects for improved safety in the garment industry.

The debate continues over the handling of the September attack on the U.S. compound in Benghazi, Libya. But retired Marine Col. Gary Anderson says some important lessons have already been learned about strengthening diplomatic security and inter-agency communication.

David Matsumoto, a psychology professor at San Francisco State University, trains national security officials and police officers to recognize "microexpressions"--fleeting, split-second flashes of emotion across someone's face. Matsumoto says those subtle cues may reveal how an interview subject is feeling, helping officials to hone their line of questioning.

How long can you go without checking email, or glancing at your smartphone? Clifford Nass, a psychology professor at Stanford University, says today's nonstop multitasking actually wastes more time than it saves--and he says there's evidence it may be killing our concentration and creativity too.

Saul Perlmutter shared the 2011 Nobel Prize in physics for his discovery that the universe was expanding at an accelerating rate. Perlmutter explains how supernovae and other astronomical artifacts are used to measure the expansion rate, and explains what physicists are learning about "dark energy" — the mysterious entity thought to be driving the acceleration.

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Between the ages of 36 and 38, Sarah Elizabeth Richards spent $50,000 to have her eggs frozen. That wiped out her savings and the money her parents had set aside for a wedding, and she writes, it was the best investment I ever made. Improved technology gives women the choice to freeze their eggs when they're younger and schedule motherhood when they're ready. The experimental status of this procedure was lifted last year.

Buzz Aldrin's name is practically synonymous with space exploration. As one of only 12 people to ever set foot on the moon, the former astronaut is a pioneer in the field.

Today, Aldrin continues to advocate for what he considers the next phase of space discovery — putting humans on the red planet. Host Neal Conan talks with Aldrin about his experience as an astronaut, his new book, Mission to Mars: My Vision for Space Exploration and his ideas for the future on Mars.