Be warned: this book is not an easy read. Between the sheer volume of information about programs and the journalistic style of writing, I found it better suited for short sittings than long sessions. I can't say that I particularly enjoyed reading about the NSA's encroachment on our web-based metadata and personal information, but I am definitely glad I read it. If you are interested in our curious about NSA surveillance and its implications, this is a must-read.