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In Tuesday's primary, many of those showing up to vote will not be registered as Republicans. In New Hampshire, voters unaffiliated with either party can vote in the primary.

So-called "undeclared" voters outnumber both Republicans and Democrats in the Granite State, accounting for more than 40 percent of the electorate. That makes New Hampshire's independent vote a tempting, but elusive target.

Former Pennsylvania Sen. Rick Santorum nearly won the Iowa caucuses on the strength of his retail campaigning across all of the state's counties — and his connection with Christian conservative voters. Now he's in New Hampshire, with just days to go before the first-in-the-nation primary. Santorum is trying to connect with independent-minded voters in a very secular state.

Melissa Block and Robert Siegel talk about a diver who found a class ring lost in the 1930s — and reunited it with the owner's grandson nearly 40 years later.

This is the season of the presidential super PACs: They flooded Iowa with attack ads and now they are looking ahead to primaries in South Carolina and Florida.

Super PACs (political action committees) can solicit big, corporate contributions — something candidates can't do. And, according to the law, super PACs are barred from coordinating their ads with the candidates they support. But it's not nearly that simple.

A Super PAC Attacks

The end could soon be near for Kodak, and the iconic film manufacturer may have itself to blame.

Kodak, based in Rochester, N.Y., could be headed into bankruptcy over the next few weeks. The company has seen its profits plunge in recent years, largely because of the popularity of digital cameras.

Kodak is trying to move into new product lines like inkjet printers, but in the meantime it's attempting to raise cash by selling off some of the patents it's developed over the years.

The NFL kicks off an exciting weekend of games Saturday when it starts its playoffs. Meanwhile, there's big news in the sport that most of the rest of the world calls football. Fox television is making a major play to air more soccer games in this country, including an English Premier League game before the Super Bowl. Sportswriter Stefan Fatsis talks with Robert Siegel about the news in both kinds of football.

Syrian authorities say a suicide bomber killed more than two dozen people in Damascus Friday, just two weeks after a similar attack in the capital left more than 40 dead. Opposition activists are questioning the government account of the bombing.

The Justice Department is redefining the criminal definition of "rape" for the first time since the 1920s. It will now include same-sex assaults and a definition beyond actual intercourse. This will change the way local police departments report crime statistics.

A U.S. Navy ship has rescued the crew of an Iranian fishing vessel from pirates. The Iranians had apparently been held for weeks. The U.S. ship, part of the USS Stennis carrier battle group, took some 15 pirates prisoner. The Stennis is the same ship that Iran threatened just a few days ago as it transited out of the Persian Gulf. Robert Siegel talks to NPR Pentagon correspondent Tom Bowman for the latest.

Rick Santorum has been working hard this week to capitalize on his strong showing in the Iowa caucuses, trying to convince Republicans in New Hampshire that he is presidential material. One thing he's not encouraging possible supporters to do: Google him.