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/https://tf-cmsv2-smithsonianmag-media.s3.amazonaws.com/filer_public/24/60/2460b558-79ae-4426-a721-60b0ef3cc1f2/commonwealth_h128rv80s_access_full.jpg "Digging Up the History of the Nuclear Fallout Shelter | History| Smithsonian Magazine")
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Historian examining the ventilation system of a WWII bunker in Koblenz, Rhineland-Palatinate, Germany Stock Photo - Alamy
