Badan Keamanan Nasional: Perbedaan antara revisi

Karena tugasnya mengumpulkan informasi, termasuk informasi rahasia, maka NSA juga terlibat dalam penelitian [[kriptoanalisis]], pemecahan [[Sandi (disambiguasi)|sandi]] dan [[kode (kriptografi)|kode]]. Pendahulu NSA seperti ''[[Purple Code]]'', ''[[Venona]]'', dan ''[[JN-25]]'' sendiri telah berhasil memecahkan [[kriptografi pada Perang Dunia II|banyak sandi]] pada [[Perang Dunia II]].

Markas besar NSA terletak di [[Fort George G. Meade]], [[Maryland]], sekitar 16 km di [[timur laut]] [[Washington, D.C.]]. Anggaran yang digunakan NSA dirahasiakan oleh pemerintah AS, namuntetapi total penggunaan listrik tahunan NSA saja melebihi 31 juta [[dolar AS]] (190 miliar [[rupiah]]).<ref>{{cite web

|title=NSA risking electrical overload}}</ref> Selain markas besar di Ft. Meade, NSA juga memiliki fasilitas-fasilitas lain seperti [[Pusat Kriptologi Texas]] di [[San Antonio]], [[Texas]].

Lambang NSA terdiri dari [[elang botak]] menghadap ke kanan, lambang [[perdamaian]], mencengkeram sebuah kunci pada kukunya, melambangkan cengkeraman NSA pada sistem keamanan dan misinya membongkar dan melindungi rahasia. Elang tersebut berada pada latar belakang biru, dan dadanya berbentuk perisai biru dengan 13 garis merah dan putih, melambangkan warna-warna [[bendera AS]]. Pada pinggir lambang, terdapat lingkaran putih dengan tulisan "NATIONAL SECURITY AGENCY" dan "UNITED STATES OF AMERICA", dengan dua bintang di antara kedua tulisan tersebut. Lambang ini mulai digunakan sejak [[1965]], saat [[Direktur NSA]] [[Marshall Carter]] memerintahkan pembuatan lambang NSA.<ref>{{cite web|title=The National Security Agency Insignia|publisher=National Security Agency|url=http://www.nsa.gov/history/histo00018.cfm|accessdate=2006-12-26|archiveurl=httphttps://web.archive.org/web/20040307182659/http://www.nsa.gov/history/histo00018.cfm|archivedate=2004-03-07|dead-url=yes}}</ref>

The NSA's presumed collection operations have generated much criticism, possibly stemming from the assumption that the NSA/CSS represents an infringement of Americans' [[privacy]].{{Fact|date=August 2007}} However, the NSA's [[United States Signals Intelligence Directive 18]] (USSID 18) strictly prohibits the interception or collection of information about "...US persons, entities, corporations or organizations..." without explicit written legal permission from the [[Attorney General]] of the United States <ref name="USSID18">National Security Agency. [http://cryptome.org/nsa-ussid18.htm United States Signals Intelligence Directive 18]. National Security Agency [[July 27]], [[1993]]. Last access date [[March 23]], [[2007]]</ref> The [[US Supreme Court]] has ruled that intelligence agencies cannot conduct surveillance against American citizens. There are a few extreme circumstances where collecting on a US entity is allowed without a USSID 18 waiver, such as with civilian distress signals, or sudden emergencies such as [[September 11, 2001 attacks|9/11]]; however, the [[USA PATRIOT Act]] has significantly changed privacy legality.

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*1996–1999 [[Lieutenant General (United States)|Lt. Gen.]] [[Kenneth A. Minihan]], USAF

* [http://www.darkgovernment.com/nsa.html Overview of the NSA and their Major Programs] {{Webarchive|url=https://web.archive.org/web/20081120090234/http://www.darkgovernment.com/nsa.html |date=2008-11-20 }}

* [http://history.sandiego.edu/gen/20th/nsa.html History of NSA] {{Webarchive|url=https://web.archive.org/web/20080515111519/http://history.sandiego.edu/gen/20th/nsa.html |date=2008-05-15 }}

* [http://history.sandiego.edu/gen/text/coldwar/nsa-charter.html The NSA charter] {{Webarchive|url=https://web.archive.org/web/20080720172513/http://history.sandiego.edu/gen/text/coldwar/nsa-charter.html |date=2008-07-20 }}

* [http://www.thememoryhole.org/nsa/origins_of_nsa.htm "The Origins of the National Security Agency, 1940-1952"] {{Webarchive|url=https://web.archive.org/web/20080103233603/http://www.thememoryhole.org/nsa/origins_of_nsa.htm |date=2008-01-03 }} —newly declassified book-length report provided by ''[http://www.thememoryhole.org/ The Memory Hole]''.

* David Alan Jordan, [http://iilj.org/documents/Jordan-47_BC_L_Rev_000.pdf Decrypting the Fourth Amendment: Warrantless NSA Surveillance and the Enhanced Expectation of Privacy Provided by Encrypted Voice over Internet Protocol] {{Webarchive|url=https://web.archive.org/web/20071030095250/http://www.ss8.com/pdfs/Ready_Guide_Download_Version.pdf |date=2007-10-30 }} - Boston College Law Review, Vol. 47, 2006

* [http://www.hal-pc.org/journal/nov99/Column/caught/caught.html "FAILURE IS NOT AN OPTION: It comes bundled with the software."|by Al Massey] {{Webarchive|url=https://web.archive.org/web/20051004030815/http://www.hal-pc.org/journal/nov99/Column/caught/caught.html |date=2005-10-04 }}

* [http://users.skynet.be/terrorism/html/usa_nsa.htm NSA: Bibliography|Compilation and research by Jean-Pierre H. Coumont] {{Webarchive|url=https://web.archive.org/web/20060216080043/http://users.skynet.be/terrorism/html/usa_nsa.htm |date=2006-02-16 }}

* Kurt Nimmo. [http://kurtnimmo.com/?p=169 NSA snoop story: Tell me something I don’t already know] {{Webarchive|url=https://web.archive.org/web/20060323234820/http://kurtnimmo.com/?p=169 |date=2006-03-23 }}, ''Another Day in the Empire'', December 24, 2005.

* Kevin Zeese. [http://rawstory.com/news/2005/National_Security_Agency_spied_on_Baltimore_0110.html NSA mounted massive spy op on peace group, documents show] {{Webarchive|url=https://web.archive.org/web/20071013213539/http://rawstory.com/news/2005/National_Security_Agency_spied_on_Baltimore_0110.html |date=2007-10-13 }}, ''Raw Story'', January 10, 2006.