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.

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.

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.

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.

Hospital administrators have to deal with Medicare and Medicaid almost every day.

Not too many have to deal with Mom at the same time.

But Matt Tavenner does.

Marilyn Tavenner is the acting administrator of the Centers for Medicare and Medicaid Services. Matt, assistant administrator at Jackson Purchase Medical Center in Mayfield, Ky., is her son.

March 7, 2012

"Sorry" may seem to be the hardest word, but a lot of famous folks seem to always be saying it. Rush Limbaugh and President Obama both apologized recently. When a public figure makes a mistake, the public wants an apology. A public apology. In this quiz, match the apology with the famous apologist.

Saying today was a "difficult day of shared pain," Jim Irsay, the owner of the Indianapolis Colts, said the team was releasing quarterback Peyton Manning from his contract.

"There will be no other Peyton Manning," he said, before momentarily tearing up. "The number 18 jersey will never be worn again."

Manning has been the centerpiece of the organization for 14 seasons. As Mark explained, yesterday, this was a business decision.

Writer Sandra Tsing Loh spoke last week on the NPR national call-in show Talk of the Nation about a provocative piece she had written for The Atlantic Magazine. It was about the heavy financial and emotional cost of caring for her elderly father and stepmother.