Best book on SIGINT, best use of open sources,
April 8, 2000
James Bamford
The book is nothing short of sensational, for two reasons: itis the first and still the only really comprehensive look at globalsignals intelligence operations as dominated by the National Security Agency; and second, because all of his research was done using only open sources, including unclassified employee newsletters at Alice Springs, and he did a great job of making the most out of legally and ethically available information. James is still around, working on another book about SIGINT, and I believe that only he will be able to top this one.