This post from the NSA’s internal SIDToday newsletter, dated 6 October 2004, reviews the agency’s operations for the recently-concluded Athens Olympics: see the Intercept article A Death in Athens: Did a Rogue NSA Operation Cause the Death of a Greek Telecom Employee?, 29 September 2015.
This GCHQ presentation from 2010 describes the extent of the agency’s cable-tapping and plans for the future: see the Intercept article Profiled: From Radio to Porn, British Spies Track Web Users’ Online Identities, 25 September 2015.
This NSA presentation from June 2006 describes advances in voice recognition technology, particularly in the context of operations in Iraq: see the Intercept article The Computers are Listening: How the NSA Converts Spoken Words Into Searchable Text, 5 May 2015.
This CSE presentation from 2011 describes some of the cyber warfare tools at the agency’s disposal: see the article Communication Security Establishment’s cyberwarfare toolbox revealed, 23 March 2015.
This CSEC presentation from 2012 outlines the agency’s capabilities against SSL encryption at that point: see the Der Spiegel story Prying Eyes: Inside the NSA’s War on Internet Security, 28 December 2014.
This page from GCHQ’s internal GCWiki, last edited in May 2012, provides background information on the agency’s “internet buffer business capability”: see the Der Spiegel article The NSA in Germany: Snowden’s Documents Available for Download, 18 June 2014.
A listing of Sigads (Signals Intelligence Activity Designators, or collection stream associated with a signals intelligence station) based in Germany, collated by Der Spiegel. For around a dozen of the 150 or so historical sigads in this list, no closing date is supplied: see the Der Spiegel article Snowden-Dokumente: Hier sitzt die NSA in Deutschland, 18 June 2014.