Glenn Greenwald, "New Study Shows Mass Surveillance Breeds Meekness, Fear and Self-Censorship" The Intercept, April 28, 2016
Glenn Greenwald, "Why Privacy Matters" TED Talk. October 2014
Human Rights Watch & ACLU, With Liberty to Monitor All: How Large-Scale US Surveillance is Harming Journalism,Law, and American Democracy
Alex Marthews and Catherine Tucker "Government Surveillance and Internet Search Behavior" Social Science Research Network. April 29, 2015
PEN America, Chilling Effects: NSA Surveillance Drives US Writers to Self-Censor, November 12, 2013.
PEN International, Global Chilling: The Impact of Mass Surveillance on International Writers. January 5, 2015
Jonathan W. Penney, "Chilling Effects: Online Surveillance and Wikipedia Use" Berlekey Technology Law Journal
Lee Rainie and Mary Madden, "Americans’ Privacy Strategies Post-Snowden" Pew Research Centre, March 16, 2015