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              | Date: 2001-06-24 
 
 NSA: Spionage gegen US-Buerger-.-. --.- -.-. --.- -.-. --.- -.-. --.- -.-. --.- -.-. --.-
 
 Dem unermüdlichen John Young ist es anscheinend gelungen,
 zum erstenmal ein Beweisstück dafür aufzutreiben, dass die NSA -
 nach US-Recht äusserst ungesetzlich - ihre eigenen Bürger
 ausspioniert.
 
 Wie alle Dokumente aus dem Core-Geheimdienstbereich ist es
 leicht angejahrt.
 
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 via	ukcrypto@chiark.greenend.org.uk
 
 Debate on whether the NSA spies domestically on US persons
 appears to be "yes" according to USSID 18, dated July 23, 1993,
 which was obtained by the National Security Archive a while back,
 for which we offer an HTML:
 
 http://cryptome.org/nsa-ussid18.htm
 
 Parts previously redacted concerning domestic surveillance are
 now revealed, among them these provisions for acquiring and
 retaining indefinitely domestically acquired encipherments:
 
 [Quote]
 
 (2) Domestic communications reasonably believed to contain
 technical data base information may be retained for a period
 sufficient to allow a thorough exploitation and to permit access to
 data that are, or are reasonably believed likely to become, relevant
 to a current or future foreign intelligence requirement. Sufficient
 duration may vary with the nature of the exploitation.  (S-CCO)
 
 a. In the context of a cryptanalytic effort, maintenance of technical
 data bases requires retention of all communications that are
 enciphered or reasonably believed to contain secret meaning, and
 sufficient duration may consist of any period of time during which
 encrypted material is subject to, or of use in, cryptanalysis. (S-
 CCO)
 
 b. In the case of communications that are not enciphered or
 otherwise thought to contain secret meaning, sufficient duration is
 one year unless the Deputy Director for Operations, NSA,
 determines in writing that retention for a longer period is required to
 respond to authorized foreign intelligence or counterintelligence
 requirements. (S-CCO)
 
 [End quote]
 
 Again, these sections were censored in versions of USSID 18
 previously made public, a 1980 version here:
 
 http://cryptome.org/nsa-ussid18-80.htm
 
 While the quoted material is a small part of the 52-page document,
 variations on it are repeated more than once, and seems to be the
 one exception to the requirement to avoid domestic interceptions
 and to destroy any that are inadvertently acquired.
 
 The classification (S-CCO) is not explained but some think it
 perhaps indicates material limited to the UK/USA agreement
 and/or the Echelon partners. A better answer is welcomed.
 
 
 
 
 
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 edited by Harkank
 published on: 2001-06-24
 comments to office@quintessenz.at
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