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Catfish eating pigeons, water travelling uphill, a blue whale barrel roll — where can one see such things? The scientific journals! Flora Lichtman and Ira Flatow look back on the year's best moments in science cinema. What was your favorite science video of the year?

In Full Planet, Empty Plates: The New Geopolitics of Food Scarcity, Lester Brown says the world's food supply is tightening, and the reasons are many. People in developing countries are eating more meat, a grain-intensive food; farmers are overpumping, causing water tables to fall; and crop yields have plateaued, despite technological advances.

Two years after a food safety bill became law, the FDA issues a rule to prevent foodborne illness in produce and one to require food manufacturers to have plans in place to prevent contamination.

The soul singer plays stripped-down versions of songs from his latest album, Landing on a Hundred.

Many Coptic Christians will celebrate Christmas on Monday outside their native Egypt. Their future there looks uncertain, and many are resettling in the U.S. Churches around New York, New Jersey and Southern California, the centers of Coptic life here, have seen memberships swell.

Venezuelan officials say their president Hugo Chavez remains in a "delicate" condition in a Havana hospital following his fourth cancer surgery. If Chavez cannot be sworn in to a new presidential term on Jan. 10, a process of selecting a new president will begin. How well prepared is the U.S. government is for a post-Chavez Venezuela?

Scientists throughout the West are trying to figure out the mystery of the disappearing mule deer. Since the 1970s, biologists in Colorado, Wyoming and Utah have seen deer populations drop by 50 percent. The potential causes vary. Oil and gas development and the growth in coyote populations top the list.

The cast of lawmakers and their leaders in the new 113th Congress is mostly unchanged. The same can be said for Capitol Hill's never-ending drama over taxes, deficits and spending.

Guest host Linda Wertheimer interviews Joe Weisberg, the writer for the new FX show The Americans about KGB spies living in the United States during the Cold War.

One of the hard things to tell about the ongoing conflict in Eastern Congo is whether it is an ethnic war or a mercantile battle for resources. The Tutsis, an ethnic minority in Congo, have been at the center of the conflict for the past 20 years. Some support the M23 rebel group because they say it offers them protection, but others say the M23's only interest is controlling mineral wealth.