17-year-old makes color changing sutures to detect infection

All over the world, infections at the site of surgical incisions are a major cause of new illnesses, extended hospital stays and even death. In the U.S. alone, these infections cost more than $3 billion annually, with even worse statistics in developing countries. Stephanie Sy reports on one 17-year-old Iowa scientist who's working on a more affordable way to detect these infections early.