There is a diversity of views in the Republican field for president that is wide, even wild. Host Scott Simon talks with Ross Douthat, a conservative author and New York Times columnist, about the ideological divides in the Republican Party, as apparent in the GOP presidential race.

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SCOTT SIMON, HOST:

And Mitt Romney spent the last week celebrating a major victory and then fending off some major attacks. NPR's Ari Shapiro reports from Aiken, South Carolina.

ARI SHAPIRO, BYLINE: Mitt Romney had a contradictory week. On the one hand, his landslide win in New Hampshire put him solidly on a course to focus on the general election and President Obama.

MITT ROMNEY: This president puts his faith in government. We put our faith in the American people.

The South Carolina primary is one week from Saturday. On Friday night, former House Speaker Newt Gingrich and former Pennsylvania Sen. Rick Santorum hit an upstate barbecue, vying to emerge as the candidate the state's conservative Republicans can rally behind. NPR's Debbie Elliott was there and has this report.

The NFL playoffs are well under way. Eight teams are still standing, but two will be sent home on Saturday. Howard Bryant of ESPN.com and ESPN The Magazine joins host Scott Simon to discuss the latest news in sports.

The lack of snow in most of the northeast has extended the hiking season for those willing to brave the cold. Brian Mann takes a winter hike into Roaring Brook Falls in New York's Adirondack Mountains.

Haiti has long been regarded as a special challenge for international aid organizations. Scott talks with Laurent Dubois, author of the upcoming book Haiti: The Aftershocks of History, about the effect, or lack thereof, of aid money sent to Haiti in the wake of the earthquake two years ago.

Late Friday the U.S. credit rating agency Standard & Poors downgraded nine European countries. S&P suggested Europe's single-minded focus on austerity to solve its sovereign debt problem is just not working. Host Scott Simon speaks with NPR's John Ydstie about the downgrades.

We received hundreds of comments after we aired a story by NPR's Scott Horsley about how President Obama's political fortunes may be tied to the unemployment rate. We also heard from listeners about Gloria Hillard's piece on Native Americans who moved off reservations into major cities. Host Scott Simon reads listener letters about these stories and more.

Karaoke machine manufacturers and the distributors of karaoke CDs have had an uphill battle fighting copyright infringement cases brought by music publishers. One player in the karaoke business is fighting a joint venture of Sony and the estate of Michael Jackson over a $1.28-billion bill. Host Scott Simon has more.

There's a downside to starting a two-month recall petition drive in mid-November in Wisconsin. Sometimes it snows. A lot.

On Tuesday, Democrats plan to turn in petitions by the truckload to try to force a recall election of Gov. Scott Walker. The effort follows the governor's move last year to strip public workers of union bargaining rights.

A heavy snowstorm late this week had most Wisconsin residents more occupied with shoveling than with knocking on doors. Recall petition circulators in the heavily Democratic city of Madison, for the most part, disappeared.