Military Under Pressure To Crack Down On Sex Abuse

Court martial began Monday for Sergeant Luis Walker. He is accused of rape, aggravated sexual assault and other charges as part of an investigation into sexual abuse at Lackland Air Force Base in Texas. Walker is one of 12 instructors accused of abusing young female recruits. The scandal is calling into question the military's "zero tolerance" policy on sexual assault. Larry Abramson talks to Robert Siegel.