The U.S. Congress has approved legislation that targets the Central Bank of Iran and is intended to make it more difficult for that country to sell its oil abroad.

But the latest sanctions could backfire. Reduced oil supplies on the world market could mean higher prices, and therefore Iran could actually make more money from its oil even if it sells fewer barrels.

The image of rich folks using food stamps to buy filet mignon is becoming the 21^st-century version of the Reagan-era "Welfare Queen."

It's a big night in Iowa: The Republican presidential candidates are holding their final big debate prior to the Iowa caucuses, which take place on Jan. 3. Melissa Block talks with Iowa Republican Gov. Terry Branstad about various candidates' strengths and weaknesses. In short, he says there's a lot of excitement, and he's reserving judgment on who the winner will be.

There's a world of activity between when online shoppers click the "place order" button and when a holiday package is delivered to their doorsteps. The National Retail Federation estimates that 38 percent of holiday purchases will be made online this year, which is keeping fulfillment centers large and small very busy.

Target.com runs five fulfillment centers. One of them, in Tucson, Ariz., stretches the length of 16 football fields.

A group of chemists have presented what they say is self-cleaning fabric that could one day lead to jeans, shirts and other clothing that dissolves stains and kills bacteria when exposed to sunlight.

The scientists announced their findings in the journal ACS Applied Materials & Interfaces, which is peer-reviewed and published by the American Chemical Society.

Considered one of the fathers of electronic music, British new-wave auteur Gary Numan has been releasing studio albums since the '70s. The man behind the classic hit "Cars" has influenced scores of musicians over the years, including Nine Inch Nails, David Bowie, Beck and many others.

If you're unemployed, it can be painfully clear when you don't have the right skills to land a good job.

With unemployment at 8.6 percent, upwards of 13 million Americans are without a job and looking for work. A recent NPR/Kaiser Family Foundation poll surveyed hundreds of long-term unemployed and underemployed people, asking whether they thought they had the skills required to find a job.

Federal money for active duty students is particularly attractive to for-profit schools, which have been signing up members of the services in record numbers.

So, the Pentagon has developed new rules to ensure that service members are treated fairly when they use government money to attend college. Those rules are set to go into effect Jan. 1, but many of the nation's best-known schools say they cannot accept those requirements.

The dispute puts at risk millions of dollars in federal assistance.

President Obama doesn't have to worry about winning the Jan. 3 Iowa caucuses. He's almost sure to be the only Democrat in the first-in-the-nation contest. Yet, that hasn't stopped the Obama campaign from organizing its own effort to get out the vote.

"Hi, my name is Margaret, and I'm a volunteer with President Obama's grassroots team, Organizing for America," says Margaret LaBounty during a recent phone drive.