TEDGlobal 2014
https://www.ted.com/talks/glenn_greenwald_why_privacy_matters?language=en#t-491830
Great presentation, pay particular attention to parts in the video on:
1. Mark Zuckerberg
Mark Zuckerberg saying "privacy is no longer a social norm" yet buying houses around him to protect his own privacy.
2. Panopticon
Using the panopticon in controlling people.
3. Prison in the Mind
. . . because mass surveillance creates a prison in the mind that is a much more subtle though much more effective means of fostering compliance with social norms or with social orthodoxy, much more effective than brute force could ever be.