> but the Soviets actually purposely introduced inaccuracies into their civilian-issue maps China does the same thing today: https://en.wikipedia.org/wiki/Res

> but the Soviets actually purposely introduced inaccuracies into their civilian-issue maps China does the same thing today: https://en.wikipedia.org/wiki/Restrictions_on_geographic_data_in_China#Coordinate_systems https://en.wikipedia.org/wiki/Restrictions_on_geographic_dat... > GCJ-02 (colloquially Mars Coordinates, officially Chinese: 地形图非线性保密处理算法; lit. 'Topographic map non-linear confidentiality algorithm')[21] is a geodetic datum formulated by the Chinese State Bureau of Surveying and Mapping (Chinese: 国测局; pinyin: guó-cè-jú), and based on WGS-84.[22] It uses an obfuscation algorithm[23] which adds apparently random offsets to both the latitude and longitude, with the alleged goal of improving national security.[