NPR News

Herman Cain quit the presidential primary over the weekend and an Atlanta TV station reports that he may endorse his former rival, Newt Gingrich. NPR's Ken Rudin talks about Cain's decision to quit, and how it will change the primary field.

When Freeman Hrabowski became president of The University of Maryland, Baltimore County in 1992, he made it his mission to close the achievement gap. UMBC now sends more African-African students to graduate school in science and technology than any other predominantly white university in the U.S.

Many doctors complain that the few patients who refuse immunizations put all patients at risk, and some refuse them treatment. New York Times Ethicist Ariel Kaminer addresses the question of whether it's ethical for pediatricians to refuse routine care to families with unvaccinated children.

Teens sharing totally inappropriate naked photos on their phones: Sexting sounded so plausible, it just had to be true.

But now it turns out that's the vast majority of teenagers aren't sexting at all.

The Occupy movement has refocused the national conversation to income inequality. As we've reported in the past, this Tumbler blog puts a face on who the 99 percent are.

But who are the 1 percent?

Today, Gallup released analysis that looked at households who earned more than $500,000 annually and found that in many cases they were a "mirror image" of the 99 percent.

Among the findings: