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.