How have historical intelligence organisations evolved into the national security agencies we know today? Who were Australia’s early intelligence professionals? And how has this rich history contributed to the formation of key signals intelligence agreements such as Five Eyes? In this episode of the National Security Podcast, Clare Birgin and Professor John Blaxland join Dr Will Stoltz to discuss their recently released book, Revealing Secrets: An unofficial history of Australian Signals intelligence & the advent of cyber. Clare Birgin is a former Australian diplomat and former Visiting Fellow at The Australian National University John Blaxland is a Professor of International Security and Intelligence Studies at the ANU Strategic and Defence Studies Centre Dr Will Stoltz is Expert Associate at the ANU National Security College and Senior Manager at CyberCX Show notes:  Revealing Secrets: An unofficial history of Australian Signals intelligence & the advent of cyberANU National Security College academic programs: find out more  We’d love to hear from you! Send in your questions, comments, and suggestions to [email protected]. You can tweet us @NSC_ANU and be sure to subscribe so you don’t miss out on future episodes. The National Security Podcast is available on Acast, Apple Podcasts, Spotify, and wherever you get your podcasts.  Hosted on Acast. See acast.com/privacy for more information.