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Plenty of apps promise to make life easier for people with life-threatening allergies to nuts and other foods. One scientist even invented a smartphone-based lab to detect potential allergens. But asking "Does that have nuts in it?" may actually be a better and safer option than pulling out your phone.

The improvement in the unemployment rate in the last year belies the fact that the rate would be so much higher if the number of people in the labor force didn't shrink.

In 2007, Prince William County, Va., voted to step up police checks aimed at driving out illegal immigrants. The move sparked local outcry and national attention, but five years on, supporters and opponents differ on whether the policy has been a success.

The short supply of a key drug to treat lymphoma forced doctors to switch to another medicine. Now researchers have documented that the fallback drug wasn't as good a choice as many doctors thought.

Services like Pandora and Spotify have been trying to win over two types of customers: younger people who don't buy music at all and older people who still like physical albums. But it's been difficult to lure customers willing to pay for music they won't own or that they can find for free online.

Connecticut has suddenly become the epicenter of America's gun control debate, in a way no one there could have foreseen. In the wake of the Newtown massacre, the state that once led the world in making modern weaponry is now the backdrop for arguments over the U.S. gun industry.

There were 138 toothbrush-related patents filed this year in the U.S. Why so many new ideas? "Cleaning the teeth is actually a pretty complex problem, and I think that's why there's been so much invention around it," says the head of Colgate's global toothbrush division.

The Department of Veterans Affairs wanted to reduce a backlog in veterans' claims for disability benefits. Instead, the problem has worsened this year, in part, the VA says, because the department made it easier for more vets to file claims.

President Obama returns to Washington Thursday as do members of the U.S. Senate. They're cutting holiday plans short in hopes of coming up with a deal to avoid the tax hikes and budget cuts set to take effect on Jan. 1.

The day is designed to say goodbye to the worst memories of 2012. In New York Friday, a mobile shredding truck along with a dumpster and sledgehammer, will help you say goodbye to things you don't need heading into the new year.