There's a spirited debate going on between GOP presidential candidates Mitt Romney and Newt Gingrich. A Super PAC called Restore Our Future is running negative ads against Gingrich on Romney's behalf. Gingrich called on Romney to get the ads off the air. Romney responded by saying the law does not allow him to communicate with a Super PAC.

In a year of deadlines and political fights, Congress is closing with one last partisan brawl. At stake are billions of dollars in tax breaks and unemployment benefits for millions of Americans set to expire Jan. 1.

Just in case you've been out buying presents, working or not watching C-SPAN with bated breath, what happened Tuesday was that the House — specifically Republicans in the House — rejected a bill that had broad bipartisan support in the Senate.

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RENEE MONTAGNE, HOST:

Most of the Republican presidential candidates are focusing their campaign efforts on Iowa at the moment; the first-in-the-nation caucuses there are less than two weeks away.

But not former Massachusetts Governor Mitt Romney. He's hundreds of miles away from Iowa, in New Hampshire. And today he's setting off on a three-day tour of the state, eyeing an early primary win.

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LINDA WERTHEIMER, HOST:

Many Americans begin their holidays with travel, and complaining about that travel is quickly becoming a favorite national pastime. Long lines, small seats, hidden fees for everything from carry-ons to a can of Coke - the list goes on. To help us understand why this is the new reality, we reached Seth Kaplan. He's the editor of Airline Weekly.

Mr. Kaplan, good morning.

SETH KAPLAN: Good morning, Linda.

Costa Rica is Central America's most stable democracy, a peaceful country that abolished its army in 1948 and now draws nearly a million U.S. tourists a year to its national parks and beaches. But it's also right in the middle of the world's most lucrative cocaine trafficking corridor.

As Mexican drug cartels push deeper into Central America, they've cast a dark shadow over Costa Rica's idyllic green image.

Part of an ongoing series

Mental health and law enforcement officials in California are trying to find ways to hold violent psychiatric patients accountable without punishing people for being sick. It's a response to escalating violence in the state's mental hospitals, where thousands of assaults occur annually. Only a tiny fraction of them, however, result in criminal charges.

Let Iran off the hook or undermine the global economy? Slap sanctions on an Iranian energy company or provide Europe with an alternative to Russian gas? Washington policymaking is especially difficult when the aims conflict, and few cases illustrate that principle more clearly than the challenge of finding a way to punish Iran without hurting someone else.