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NSA cryptography — The vast majority of the National Security Agency s work on encryption is classified, but from time to time NSA participates in standards processes or otherwise publishes information about its cryptographic algorithms. The NSA has categorized… … Wikipedia
Military satellite — A military satellite is an artificial satellite used for a military purpose, often for gathering intelligence, as a communications satellite used for military purposes, or as a military weapon. A model of a German SAR Lupe reconnaissance… … Wikipedia

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