Παγκόσμια επιτήρηση: Διαφορά μεταξύ των αναθεωρήσεων

 

== Περαιτέρω μελέτη ==

* "[http://www.ub.uio.no/fag/informatikk-matematikk/informatikk/faglig/bibliografier/no21984.html Global Surveillance]. An annotated and categorized "overview of the revelations following the leaks by the whistleblower Edward Snowden. There are also some links to comments and followups". By Oslo University Library.

* {{cite news|url=http://www.guardian.co.uk/world/the-nsa-files|title=The NSA Files|work=[[The Guardian]] | location=London|date= 2013-06-08}}