Talk of the Nation

Mitt Romney eked out a victory in Ohio's Super Tuesday primary. It was the closest of ten races, and the most closely watched. Rick Santorum came in second. Newt Gingrich took his home state of Georgia, Romney won six in all, and Santorum kept his campaign alive by winning three.

Talk of the Nation listeners wrote to the show to share their insights on previous show topics, including genetic testing, affirmative action, the source and practice of patience, and interracial marriage.

Overcrowded prisons already coping with budget pressures face a new challenge: The growing needs of an aging inmate population. With limited state budgets, prison setups, and facilities, prison officials are trying new ways to provide care and, in some cases, opting to release inmates early.

The viruses, spam and malware that have plagued desktop computers for years now increasingly threaten mobile smartphones, as well. More text messages now deliver scams and a growing number of malicious apps install spyware, target personal information and attempt to charge users hidden fees.

President Obama recently said, "Iran's leaders should understand that I do not have a policy of containment; I have a policy to prevent Iran from obtaining a nuclear weapon." Some say containment represents a viable option against Iran, but others argue that Cold War strategies do not apply to Iran.