Edward Snowden's Memoirs
Ed Snowden has published a book of his memoirs: Permanent Record. I have not read it yet, but I want to point you all towards two pieces of writing about the book. The first is an excellent review of the book and Snowden in general by SF writer and essayist Jonathan Lethem, who helped make a short film about Snowden in 2014. The second is an essay looking back at the Snowden revelations and what they mean. Both are worth reading.
EDITED TO ADD (11/7): Interesting quote from the Guardian piece:
Snowden dishes on the shortcomings of our spy networks. According to him, the National Security Agency (NSA) is home to cutting-edge technology that is poorly safeguarded. In contrast, the CIA is weak on gadgetry and tech but zealous in protecting its secrets.