NSA Declassifies 200-Year-Old Book

Noah Shachtman

A cryptology instruction book… 202 years old. A photograph of the U.S. Army’s cypher bureau… from 1919. A breakdown of Russian electoral districts… circa 1948. Schematics for a magnetic tape memory system… nearly half a century old.

These are just some of the items that, had you seen them, would have irreparably damaged U.S. national security. These are just a few of the documents, mere citizen, that for decades were far too sensitive for your uninitiated eyes.

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