Talk of the Nation

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IRA FLATOW, HOST:

This is SCIENCE FRIDAY. I'm Ira Flatow. This isn't going to take you by surprise, but America is fat. One in three adults is obese. For kids, it's one in six. But don't forget the infants. Doctors say there's now an obesity epidemic among six-month-old babies. And if you think you're safe because you're thin, consider that up to 40 percent of thin people have metabolic syndrome, in other words, on the road to type 2 diabetes, even if they can't tell by looking in the mirror.

Quentin Tarantino's latest film is proving to be one of his most controversial. Django Unchained has drawn admiration and condemnation from critics, and has sparked debates about history, race and violence. NPR's Celeste Headlee reads from a variey of opinion pieces about the film.

President Obama will be officially sworn in and begin his second term as the 44th President of the United States on Jan. 20. As Washington gears up for Inauguration Day, people across the country and the world are reflecting on what was gained and lost during Obama's first term.

The Florida Fish and Wildlife Conservation Commission launched its first ever "Python Challenge." More than 800 hunters have registered for the month-long competition aimed at harvesting Burmese pythons. University of Florida professor Frank Mazzotti talks about the threat they present to the ecosystem of the Everglades.

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IRA FLATOW, HOST:

Up next, Flora Lichtman is here with our Video Pick of the Week. Hi, Flora.

FLORA LICHTMAN, BYLINE: Hi, Ira.

FLATOW: Now, we've got some digital research on this one. The other - the classic definition of digits, which...

LICHTMAN: The analog digital, your fingers.

FLATOW: Your fingers. That's what it means in Latin or something, right?

According to the EPA, more than 2.5 million tons of electronic waste, or e-waste, is produced each year in the U.S. Derek Markham, a contributing writer for Treehugger.com, discusses the global impacts, and why you should think twice before discarding your old cell phone.

What's it like to live--and cook--on Mars? To find out, researchers are simulating Mars missions in Russia, and on the slopes of a Hawaiian volcano. Kim Binsted talks about her study to whip up tastier space food. Porcini mushroom risotto, anyone? And sleep expert Charles Czeisler talks about how humans adapt to the 24.65-hour Martian day.

Living with an overweight parent, child or spouse can be difficult. Loved ones who want to help a family member struggling with obesity may be hesitant to broach the subject for fear of causing shame or making matters worse.

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CELESTE HEADLEE, HOST:

President Obama nominated Jack Lew, his current chief of staff, for Treasury Secretary today. Former cabinet members explain what it takes to put together a good cabinet, and how to get the members to work together.