According to the inspector general for the National Archives and Records Administration, NARA has lost track of 81 boxes containing top secret or restricted data—including nuclear weapons information. Among these are four boxes of material designated “Top Secret” by the Office of the Secretary of Defense.

Government officials don’t think the materials have been stolen. Instead, the paperwork may just be unaccounted for inside The Washington National Records Center, which features rooms double the size of football fields that house row after row of boxed documents.

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