"Helping people, that's what it's all about": 101-year-old pediatrician pushes off retirement

Dr. Andy Margileth shows no sign of slowing down. The longtime pediatrician turned 101 years old on Saturday and he doesn't have plans to retire. 

"It's a feel-good job. It's not even a job. It's just fun," he said. "What is more important than helping other people?"  Margileth has defied the actuaries. He's one of a dozen century-old doctors in the United States who are still practicing medicine.