National

It became the largest city in U.S. history to file for bankruptcy. Its former mayor was sentenced to 28 years in prison. And a TV personality compared it to Chernobyl. But a new year is on the horizon, and for some parts of Detroit, things are looking up. Really.

Colorado and Washington state are setting up legalized marijuana markets, and advocates are celebrating. But there are signs of discontent. Even a founder of a marijuana legalization group says there's a possibility of a popular backlash.

As a therapist, Nelba Márquez-Greene has spent a career counseling mentally ill and troubled young people. But she'll never understand what drove a young man to take the life of her 6-year-old daughter and 25 others. A year later, she is trying to prevent violence and promote healing.

Two decades ago, labor unions warned that the North American Free Trade Agreement would drive away U.S. jobs and push wages down. Today, unions feel as strongly as ever that NAFTA was a mistake for U.S. workers, but quantifying the factors behind the decline in the middle class is no simple matter.

As 2013 wraps up, NPR is looking at the numbers that tell this year's story. When it comes to the economy, $85 billion is a good candidate. That's the amount the Federal Reserve has been pumping into the financial system each month trying to stimulate growth and bring down unemployment. On Tuesday, Fed policymakers begin a two-day meeting at which they'll decide whether to dial back that stimulus.

Democrats in Congress are promising to try to retroactively extend emergency unemployment benefits after the new year. The expiration of the benefits may satisfy some fiscal conservatives, but it has some economists and many desperate job-seekers concerned.

Before the end of the year, the federal government will select six states where drone makers can test how to safely integrate the technology into commercial airspace. Nevada is vying for one of the spots. The FAA stamp of approval could lure big industry to high-end test sites. But smaller drone developers, who're focused on non-military applications, also see enormous opportunities.

The Chinese Exclusion Act, designed to prevent Chinese laborers from entering the country, prompted tens of thousands of people to use forged papers to enter the U.S. The law was repealed 70 years ago, but many Chinese-Americans are still piecing together their ancestors' true identities.

Every brake screech, whistle and rattle from the movie The Polar Express came from recordings of a historic locomotive, the Pere Marquette 1225. After four years of costly repairs, passengers can once again jump onboard and travel to see Santa Claus at the North Pole (imagination required).

The sharing economy is already changing several sectors: housing, transportation, retail. In some cities, it's changing the way we work. As more people start their own enterprises, they're shunning traditional offices and choosing to share space instead.