Many Chinese, Vietnamese, Korean and other Asian immigrant families are preparing to celebrate the Lunar New Year by filling small envelopes with money.

Exchanging cash gifts with relatives and friends is an annual holiday tradition that can test one's cultural knowledge and, sometimes, bank account.

Allen Kwai, 36, and Debbie Dai, 31, first met a decade ago during church choir practice in New York City's Chinatown. They finally tied the knot last October.

Lack of water supply isn't just an issue in hot spots like Texas, Colorado and the Mississippi; it has also become a problem in the Northeast, where rivers are drying out in the summers and infrastructure developments are competing more for resources.

One of the area's biggest public universities, the University of Connecticut, needs more water. But plans to obtain it are generating controversy in a region where the availability of water is becoming more and more unpredictable.

The Water Source

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AUDIE CORNISH, HOST:

It's ALL THINGS CONSIDERED from NPR News. I'm Audie Cornish.

ROBERT SIEGEL, HOST:

And I'm Robert Siegel. Police in Southern California are still searching for Christopher Dorner. He's the fired LA police officer who's wanted for three murders and other shootings since the weekend. At last word, the search had led police into the San Bernardino Mountains where Dorner's Nissan pickup truck was found torched. Police are going door to door in search of Dorner, who is a 33-year-old, 6-foot tall, 270 pound African-American.

With the conclusion of Sunday night's ceremony, Linda Holmes and I have now live-blogged fully one-eleventh of the Grammy Awards' 55 annual incarnations. Below is our original post and an archived live blog of the telecast:

After nearly 30 years of prolific genre-avoidance, the indie-rock trio Yo La Tengo returns with Fade, its first studio album in almost four years. The record, the band's 13th full-length release, features "Before We Run," a six-minute piece of orchestral pop showcasing Yo La Tengo's stately side.

The Obama administration faces tricky political and legal questions on the subject of gay marriage. By the end of this month, the federal government is expected to file not just one but two briefs in a pair of same-sex marriage cases at the U.S. Supreme Court.

But it is the Proposition 8 case from California that poses the thornier questions for the administration — questions so difficult that the president himself is expected to make the final decision on what arguments the Justice Department will make in the Supreme Court.

The No. 1 song in the country right now is "Thrift Shop" by Macklemore and Ryan Lewis, a rap group out of Seattle. Their claim to fame: They got the song to the top of the chart by themselves, without being signed by a major label.

This interview was originally broadcast on Oct. 15, 2012.

Whenever Tyler Perry is in front of the camera, he's usually behind it as well. A screenwriter, director, producer and star, Perry grew up poor in New Orleans, but he has become a movie phenomenon — he was described in the New Yorker as the most financially successful black man the American film industry has ever known.

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JOE PALCA, HOST:

This is SCIENCE FRIDAY; I'm Joe Palca. Do you ever get the feeling you're being watched? These days if you're not careful, your phone knows where you are, and there's a good chance somebody else does, too. Or you've noticed that the ads on sites you visit are starting to look a little too personalized, like how did they know I was planning a vacation to New Orleans.

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JOE PALCA, HOST:

This is SCIENCE FRIDAY. I'm Joe Palca.

You know the theory that a big collision, a comet or an asteroid, something like that, helped kill off the dinosaurs? The idea has been around for a while. But this week, new research published in journal Science provides more accurate dates for the giant impact and the dino demise.

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