'Deteoriating' Alcatraz decoy heads will live on with the help of 3-D scanning
After nearly 60 years on display, it's expected for heads to have some wear and tear, especially those used during the 1962 inmate escape from Alcatraz Federal Penitentiary. To preserve these relics of Bay Area history, the FBI and National Park Service (NPS) are turning to contemporary technology – 3-D scanning.