Child's rare illness highlights promise of animal testing despite opposition

Parents like Justin and Rosalyn Porcano in San Rafael, California, are watching the debate over animal testing with concern. Their 7-year-old daughter, Lia, has a rare genetic disorder, Usher Syndrome 1B. Without medical advancements in treatment of the disorder, she will likely go blind by the time she's in high school. Jim Axelrod reports.