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.

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.

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.

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.