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Prison

Modern prisons are brimming with technology. Explore the inner workings and incredible stories behind four landmark prisons that allowed engineers to build safer, tougher and bigger prisons.

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  • Originally Aired August 9, 2011
  • Runtime 45 minutes
  • Content Rating United States of America TV-PG
  • Network National Geographic
  • Created September 18, 2020 by
    Administrator admin
  • Modified June 5, 2022 by
    crimix