Focusing on the consequences of the Patriot Act and how the US government upped the security on civilians after 9/11, this is a really nice graphic that gives a scary visual on the expanded powers of the national government in the name of security. It's from the ACLU, so this gives a pretty good perspective of, specifically, curbed liberties.
This source gives a variety of examples in which encryption is used for security everyday, like ATM machines and DVD players. It seems like this is a pretty useful list because it goes into sufficient enough depth to describing the different examples, and specifically explains how encryption comes into play - without making it too long or hard to understand.
This is a cryptography blogger's translation of Kerckhoff's article about military cryptography. He denotes that secret methods of communication are limited to higher officers due to potential leakage; but by limiting cryptographic use, are they potentially putting at risk the safety of lesser positions in order to keep the secrecy of their cipher methods? Is this just the inevitable nature of cryptography in general?
"Matt Blaze directs the Distributed Systems Lab at the University of Pennsylvania." This site links to his blog and research papers regarding topics of cryptography.