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Steve Inskeep has the Last Word in business.

Concluding that he can win the Iowa caucuses, former Massachusetts Governor Mitt Romney spent the weekend campaigning in western Iowa, a mostly conservative region. After months of making only periodic visits to the state, Romney is making an aggressive final push through Iowa.

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LINDA WERTHEIMER, HOST:

Newt Gingrich says, when it comes to his campaigning, he has been conducting an experiment. The former House speaker says he's been running a positive campaign as he competes for the Republican nomination. And if voters who say they hate negative campaigning practice what they preach, Gingrich says he'll do better than expected in Iowa.

STEVE INSKEEP, HOST:

But Gingrich also says he needs to set the record straight, and that means firing back at Mitt Romney.

For generations of Japanese, smoking has been all but synonymous with manhood and hard work. During Japan's high-growth period in the 1960s, the smoking rate for males topped 80 percent, twice as high as the rate during America's smoking heyday.

In a country that's so tobacco friendly, it's no wonder anti-smoking initiatives have trouble gaining traction. That's despite the estimated $90 billion being spent on cigarette-related health costs and damages every year, three times what cigarette sales bring in annually, according to the Japan Health Economics Association.

Chinese leaders made a rare condolence visit to North Korea's embassy in Beijing last month.

Broadcast on China Central Television, the leaders – dressed in black suits — bowed in unison towards the portrait of Kim Jong Il. Why show so much respect to a man who caused so much misery?

One reason: fear of something worse.

Companies making genetically modified animals face a regulatory morass in this country. It's not always clear which federal agency has responsibility for regulating a particular animal, and even when one agency does take the lead, the approval process can drag on for years.

The companies say this uncertainty means their technologies may die without ever being given a chance.

Take the case of the British company Oxitec. It has developed a genetically modified mosquito that the company says can be used to combat a disease called dengue.

On New Year's day in 1977, Lake Superior State University in Michigan released its first "List of Words Banished from the Queen's English for Misuse, Overuse and General Uselessness". Every year since then, it has taken nominations for words and phrases we should quit using in the coming year. Last year's list included such anti-favorites as "viral," "epic" and "refudiate."

In Washington, D.C., pedestrians nominated "ping me", "literally" used incorrectly, "bro," "hater," "hating," "totes" and "amazing."

As the new year gets under way, we take a quick temperature check on some key areas to see what the prognosis might be. The topics: politics — domestic and global — and economics.

The lecture is one of the oldest forms of education there is.

"Before printing someone would read the books to everybody who would copy them down," says Joe Redish, a physics professor at the University of Maryland.

But lecturing has never been an effective teaching technique and now that information is everywhere, some say it's a waste of time. Indeed, physicists have the data to prove it.

When Eric Mazur began teaching physics at Harvard, he started out teaching the same way he had been taught.

There's a handful of people — roughly 10 percent of the global population — that has something in common.

Many mysteries and misconceptions surround this group. Its members have been called artistically gifted and self-reliant, but also untrustworthy and insincere. Most recently, several of them have been called the president of the United States.

The new Broadway production of the musical On a Clear Day You Can See Forever has been billed as a "reincarnation" rather than a revival. The premise is the same as before: A psychiatrist, Mark Bruckner, falls in love with the "past life" of one of his hypnotized patients. But this version replaces Daisy, the charming young patient first played in the 1960s by Barbara Harris, with Davey — a gay man harboring a female alter ego deep in his subconscious.

About 430 years ago, Pope Gregory XIII gave the West a calendar which divided 365 days into what was to be called a "year." With 12 months and 7 days bundled into so-called "weeks," the Gregorian calendar was hailed as a marvel of medieval accuracy. We use it today, despite its occasional messiness — drifting days, leap years and 28-day months.

It's been only three days since the funeral for North Korean leader Kim Jong Il. In that time, his son, Kim Jung Un, has been elevated to the rank of supreme commander of the North Korean army. Meanwhile, North Korea has issued a series of scathing attacks on the government of South Korea. NPR's Mike Shuster reports it all looks like business as usual.

2011 was a year of protest across the Middle East and North Africa. Amid each uprising, women were visible, fighting not just for the rights of their country, but often for rights of their own. Host Audie Cornish talks with Isobel Coleman of the Council on Foreign Relations about women in the Arab uprising and their role going forward.

One of the biggest political question marks going into 2012 is the fate of the Affordable Health Care for America Act. Audie Cornish speaks with Noam Levey of the Los Angeles Times about what's ahead for Americans in terms of health care in the new year, including a constitutional challenge to the law's mandatory health care provision.

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AUDIE CORNISH, HOST:

This is WEEKEND EDITION from NPR News. I'm Audie Cornish.

Even though seven Republican presidential candidates ushered in the New Year, a new poll by the Des Moines Register in Iowa makes it look like a three-person race. We'll fill you in on the latest shuffle of front-runners in a moment. But first, how did the Republicans candidates spend New Year's Eve?

So we sent NPR's Sonari Glinton to find out.

While all focus on has been on the future of the White House, the fate of the Senate hangs in the balance of 2012 as well. Host Audie Cornish talks with Jennifer Duffy of the Cook Political Report about what's at stake in the U.S. Senate.

These are gloomy times for debt-burdened France, but in the countryside some are taking a longer view. NPR's Eleanor Beardsley reports.

Last New Year's Day, most economic forecasters were predicting a good year ahead. But 2011 turned out to be another disappointment for stock investors and home sellers, and a discouraging time for job seekers.

Now, as 2012 begins, economists are hoping their crystal balls are working a bit better. Most are seeing a brighter picture.

Around the world last night, revelers marked the start of the new year. But in the Northwest corner of the U.S., some Native American tribes began their celebrations early.

On Dec. 20, just before the winter solstice, tribes in Eastern Oregon held a ceremony called kimtee inmewit, a welcoming of the new foods.

Come 2012, there's a new food vocabulary: authentic, craft, small batch, artisanal, rustic and, of course, local. It's the opposite of processed, mass produced and factory farmed.

What might be called urban neo-ruralism has apartment dwellers canning tomatoes, keeping bees and churning butter.

The small farmer is the new gastronomic superhero, sourced on restaurant menus. Independent butcher shops are opening across the country with unfamiliar cuts like Denver steak, petite tender, flat iron. Expect more specialty meats, too, like bison, elk, goat and rabbit.

Nine years ago, on New Year's Day, David Gunther faced a mini-epidemic. He's a family doctor, and at his old job in Somerville, Mass., just north of Boston, many of his patients were from Haiti.

"Ten or 12 patients all complained of pretty similar symptoms – belly pains, including some diarrhea," he says. "They weren't terribly ill, but it was clear that there was some kind of a pattern."

Gunther almost alerted the Department of Public Health to this mild gastrointestinal outbreak. But then, one of those patients with the stomach trouble figured out what was going on.

The beaches of Brazil lure in foreigners, but fortune-hunters are more interested in the opportunities offered by the rapidly developing South American state.

The global economic downturn is starting to affect Brazil, but the country has not nearly been as hard-hit as Europe and the U.S. The emerging economy is enticing to young, highly trained and educated workers like David Bailey of Britain.

Bailey plays piano as he and his roommates prepare for a party in Rio de Janeiro. They're all foreigners — from France, Switzerland, Spain — and all of them are here for work.

A little over three hours outside Des Moines, Iowa, in the northwest corner of the state, is the city of Le Mars. A sign proclaims this is the Ice Cream Capital of the World.

Saturday, former Massachusetts Gov. Mitt Romney spoke in Le Mars at the Family Table restaurant. His speech, like all Romney campaign speeches, was about President Obama.

"This is an election to decide whether we're going to go further and further down the path of becoming more and more similar to a European welfare state, or whether instead we're going to remain an exceptional nation," he said.

Happy new year, everyone!