Talk of the Nation

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.

Adult children caring for elderly parents may feel guilty, isolated and resentful. But some parents being cared for do too. Dr. Lillian Rubin knows that struggle well, as she has found herself at odds with her well-meaning daughter over what her daughter wants for her, and what she actually needs.

A growing field of medical research aims to pinpoint exactly why pets can make us happier and healthier. Some studies show that animal interaction can increase a person's level of oxytocin, a hormone associated with love and trust. And the animals also benefit from positive human interaction.