9/11 NYPD hero's family

Police Officer Moira Smith was the only female member of the NYPD killed in the World Trade Center attacks. She died helping survivors escape the south tower as it collapsed. Now her family is facing down her accused killers. Last month, they were among a select group of victims' relatives who traveled to Guantanamo Bay to attend pre-trial hearings for the detainees accused of plotting the attacks.