DNA frees 3 convicts after 17-year incarcerations --Barry Scheck and The Innocence Project have struck again. Thus far, they have used DNA to free 128 wrongly convicted people. Read Frontline's interview with Scheck. Learn about a sister organization, Northwestern's Center on Wrongful Convictions, which has freed nine Illinois men who were once sentenced to death. For those sentenced to time in the can, prison can be a rough place. How can we prevent innocent people from being put to death? Or fates worse than death?