In the modern era, there is great convergence in the technologies used by friendly nations and by hostile ones. Signals intelligence agencies find themselves penetrating the technologies that they also at times must protect. To ease this tension, the United States and its partners have relied on an approach sometimes called Nobody But Us, or NOBUS: target communications mechanisms using unique methods accessible only to the United States. This paper examines how the NOBUS approach works, its limits, and the challenging matter of what comes next.
Calder Walton is a post-doctoral Ernest May Fellow in History and Policy at the Belfer Center's International Security Program. Calder's research is broadly concerned with intelligence history, grand strategy, and international relations. His research has a particular focus on policy-relevant historical lessons for governments and intelligence communities today. Calder is currently writing a book about superpowers and intelligence, exploring their rise and fall, from the twentieth century's World Wars to cyber-espionage today. This research builds on his first (award-winning) book, Empire of Secrets. British Intelligence, the Cold War and the Twilight of Empire (Harper-Press 2013). While pursuing a Ph.D. in History at Trinity College, Cambridge (UK), and then a Junior Research Fellowship also at Cambridge University, Calder was a lead researcher on Professor Christopher Andrew's unprecedented official history of the British Security Service (MI5), Defend the Realm (2009). This research position gave Calder, for six years, privileged access to the archives of MI5, the world's longest-running security intelligence agency. As well as his research on intelligence history, Calder is also an English-qualified Barrister (attorney), and, among other matters, has worked on high-profile litigation and international arbitration cases involving government and national security issues and also regulatory investigations.Last Updated: Aug 31, 2017, 8:43pm