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January 25, 2011 United States Signals Intelligence Directive 18

Document Date: January 25, 2011
Release Date: November 18, 2013
Agency: Government (ACLU/EFF FOIA Litigation)
Document Type: Internal NSA Documents/Presentations
Legal Authorities: FISA Amendments Act, Executive Order 12333
Records Collected: Telephone Content, Internet Content
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United States Intelligence Directive 18 (USSID 18) dated January 25, 2011 prescribing NSA policies and procedures as they relate to the Fourth Amendment of the Constitution and minimization procedures/rules governing the collection, retention, and dissemination of information about US persons.

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