This unofficial account of Australian Signals intelligence reveals the organisation's efforts to reveal the secrets of others. What is Australian signals intelligence? Why do we have a national signals intelligence agency and why are our three armed services involved? What do they all do and why is it controversial? And how significant are our ties with the United States, the United Kingdom, Canada and New Zealand, the formidable Five Eyes partnership? For a long time, much of the Australian Signals intelligence (or Sigint) story has been kept secret. Revealing Secrets unearths the...