This March 2007 post from the internal NSA newsletter SIDToday draws attention to voice-masking technology used by subjects of surveillance to frustrate the agency’s voice-recognition efforts: see the Intercept article Finding Your Voice, 19 January 2018.
In this 2005 article from the internal NSA newsletter SIDToday, an NSA employee credits the agency with securing the conviction of Abdurahman Alamoudi in the Eastern District of Virgina: see the Intercept article NSA Secretly Helped Convict Defendants in U.S. Courts, 30 November 2017.
A single slide from an NSA PRISM presentation claims that Saudi Prince Salman bin Sultan ordered Syrian rebels to “light up” Damascus in March 2013, to mark the second anniversary of the Syrian revolution: see the Intercept report NSA Document Says Saudi Prince Directly Ordered Coordinated Attack By Syrian Rebels On Damascus, 24 October 2017.
This 18 May 2010 article from the NSA internal newsletter SIDToday outlines how the agency is reacting to the growth of mobile phone services on board commercial aircraft: see the Intercept article American and British Spy Agencies Targeted In-flight Mobile Phone Use, 7 December 2016.
This GCHQ presentation from November 2010 shows that the agency was logging 30 billion metadata records per day by that year: see the Intercept article Profiled: From Radio to Porn, British Spies Track Web Users’ Online Identities, 25 September 2015.
This CSE (then CSEC) presentation from 2012 describes the Canadian agency’s file download monitoring operation: see the Intercept article Canada Casts Global Surveillance Dragnet Over File Downloads, 28 January 2015.
This 13 September 2010 presentation from the NSA’s OTP VPN Exploitation Team explains the work of the division: see the Der Spiegel story Prying Eyes: Inside the NSA’s War on Internet Security, 28 December 2014.
This NSA information paper dated 8 April 2013 details the agency’s deepening signals intelligence relationship with Saudi Arabia: see the Intercept article The NSA’s New Partner in Spying: Saudi Arabia’s Brutal State Police, 25 July 2014.
This NSA classification guide, dated 21 November 2011, covers signals intelligence material that as to be kept secret for more than the standard 60 years: see the Der Spiegel article The NSA in Germany: Snowden’s Documents Available for Download, 18 June 2014.