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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.

After concentrating on Iowa more than any other Republican presidential candidate, Rick Santorum is gaining on front-runners Mitt Romney and Ron Paul, a new Des Moines Register poll shows. Santorum is hoping to consolidate Iowa's Christian conservative vote — the strategy that won the state for former Arkansas Gov. Mike Huckabee four years ago.

Jeanne Zyzda did not expect more than 100 people in her Sioux City coffee shop, the Daily Grind. Not all at once, and not on a holiday.

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.