Talk of the Nation from NPR

Federal regulators signed off on the construction and operation of two nuclear reactors at a Georgia plant. It's the first license to be granted for a new reactor in the U.S. since 1978. Nuclear expert Per Peterson discusses the reactors' design, safety features and what this means for the future of nuclear power.

Writing in the journal Nature, UCSF pediatrician Robert Lustig and colleagues suggest regulating sugar just like alcohol and tobacco--with taxes and age limits, for example--due to what they call the "toxic" effects of too much sweet stuff. Education, they say, is not enough.

Two studies in the Archives of Internal Medicine suggest short and long-term exposure to air pollution can increase the risk of stroke and cognitive declines. Study author Jennifer Weuve discusses the results, and why particulate matter and gases like ozone may harm the body.

New York Knicks point guard Jeremy Lin sprang into the spotlight after he scored 27 points in a game against the Toronto Raptors. Lin, who previous mostly rode the bench, has become a sensation in the U.S., particularly among many Asian Americans. Journalist Chuck Leung feels a bit conflicted about celebrating Lin's success.

The Academy of Motion Picture Arts and Sciences has changed the way they nominate documentaries for the Oscars. One of the most controversial changes — proposed by filmmaker Michael Moore — is that films must be reviewed by The New York Times or the Los Angeles Times.

The number of jobless claims for January 2012 was at the lowest point since March 2008. Businesses are reporting profits, buyers are reporting confidence. Diane Swonk, chief economist for Mesirow Financial, discusses whether it's safe to say an economic recovery has begun.

Since the uprising against President Bashar Assad began in March 2011, international attention has been focused on the marches and demonstrations led by the Syrian opposition. Though it is often cast as a monolith, the Syrian opposition is made up of many subgroups with varied interests.

When immigrants face depression, therapy may not be the first option they explore for relief. When they do seek counseling, they often encounter a cross-cultural struggle to understand and be understood by American practitioners.

Israel blames Iran for attacks in the capital cities of India, Georgia and Thailand, further escalating Israeli-Iranian tensions. Washington Post columnist Jackson Diehl believes that Iranian leaders are exhibiting signs of desperation.

GOP presidential candidate Rick Santorum swept caucuses in Minnesota and Colorado and the Missouri primary, gaining considerable ground on Mitt Romney's primary lead. NPR's Ken Rudin and Dan Balz, of the Washington Post, recap the week in politics.