There's been a shift in the economic discussion in American politics. For months, the debate was focused on government spending, regulations, debt and taxes. Now there's something new: income inequality.

And it's not just the Occupy Wall Street protesters who are worried about the growing gap between the richest 1 percent and the rest of America. The gap has been growing for 30 years, but in the midst of the recession, it appears to have reached a tipping point.

The top-ranked LSU Tigers will be in Tuscaloosa to take on the Alabama Crimson Tide Friday, in what some college football fans are calling "the game of the century."

But it's hard to know if the clash between the nation's top two teams will live up to the billing.

"To paraphrase Kierkegaard," NPR sports correspondent Mike Pesca tells Renee Montagne, "football games must be played forward, but can only be understood backward."

A new survey from the Pew Research Center finds wide gaps in how different generations view politics. Older voters are more conservative, more angry at the government and less hopeful about the future of the country. Younger voters lean left, wish the government played a greater role in their lives and believe the nation's best days are yet to come.

Fifteen percent of the food Americans eat is imported, including 80 percent of the seafood, and two-thirds of the fruit and vegetables. Our current food safety system can't even begin to keep tabs on the 24 million shipping containers loaded with food that the U.S. Food and Drug Administration estimates arrived this year from overseas. Increasingly, that food is coming from China, which has suffered a series of scandals involving tainted food.

Imagine a critter about the size of a squirrel. Imagine it with big eyes and a long snout. Now imagine it with canine fangs about one-fifth the length of its head. That's the kind of a mammal that scientists said today was walking among dinosaurs more than 100 million years ago.

Scientists found the fossils in Argentina and the find is significant because scientists say it closes a 60-million-year gap in what they knew about mammals in South America during the late Cretaceous period.

No one seems to be talking about Herman Cain's 9-9-9 tax plan this week — including Herman Cain. Instead, he's had to deal with allegations that he committed sexual harassment when he was head of the National Restaurant Association.

On Wednesday night, he accused Texas Gov. Rick Perry's presidential campaign of planting the story. Perry's campaign flatly denied it, and Cain has backed off.

Regardless, some political consultants have seen the invisible hand of opposition research during this campaign season — what's known as the "dark art of politics."

One of two women who settled sexual harassment complaints against GOP presidential candidate Herman Cain when he headed the National Restaurant Association will know by Friday whether the group will release her from a confidentiality clause that prevents her from speaking about the agreement.

The woman, however, is unlikely to go public even if the lobbying group lifts the confidentiality requirements imposed as part of the 1999 cash settlement, her lawyer says.

Privately, U.S. officials have long complained that China and Russia are out to steal U.S. trade secrets, intellectual property and high technology. But in public they've been reluctant to point fingers and instead have referred obliquely to "some nations" or "our rivals."

President Obama's new plan to help millions of people stay in their homes by refinancing their mortgages at low rates raised hopes of easing the housing crisis.

But federal budget cuts have sharply reduced the number of housing counselors who can help distressed homeowners in the nation's hardest hit communities. Banks that own the properties are slow to pick up the tab.

"We are definitely concerned about counseling capacity," says Lemar Wooley, a spokesman for the Department of Housing and Urban Development.

As the U.S. faces a presidential election in the middle of tough economic times, taxes have been firmly in the spotlight. A study (pdf) released today is bound to add more fuel to the fire.