All Things Considered

For years, Maricopa County, Ariz., has been ground zero in the debate over immigration.

On one hand, the massive county, which includes the state capital of Phoenix, has a growing Latino population. On the other, it's home to publicity savvy Sheriff Joe Arpaio, who has made his name by strictly enforcing, some say overstepping, immigration laws.

Single mothers have an especially hard time getting out of poverty. Households headed by single mothers are four times as likely to be poor as are families headed by married couples.

Still, many of these women are trying to get ahead. Some know instinctively what the studies show: Children who grow up in poor families are far more likely to become poor adults.

Woody Guthrie would have been 100 years old on Saturday. The singer and songwriter wrote "This Land Is Your Land," among thousands of other songs.

Even though Guthrie died almost 45 years ago, his lyrics and message continue to appeal to new generations of Americans.

Finally, there's some good news about Alzheimer's disease.

It turns out that a few lucky people carry a genetic mutation that greatly reduces their risk of getting the disease, an Icelandic team reports in the journal Nature.

The mutation also seems to protect people who don't have Alzheimer's disease from the cognitive decline that typically occurs with age.

Eleven-year-old Woosuk Kim sees his mother only three or four times a year. That's because he's part of what Koreans call a "goose family": a family that migrates in search of English-language schooling.

A goose family, Woosuk explains, means "parents — mom and dad — have to be separate for the kids' education."

Woosuk's father brought him and his little brother to America two years ago to attend Hancock Park Elementary, a public school in Los Angeles. The boys' mother stayed in South Korea to keep working.