Original 'Echelon' secret UK-US spookery treaty published ? The Register

Old news in the world of surveillance and spookery today, as the original 1946 secret treaty between the UK and US which set up the famous "Echelon" listening system is finally published.
The UKUSA agreement, drafted to formalise intel-sharing arrangements which had developed during World War II, formed the basis for the US-British (and later, other nations) partnership against the Warsaw Pact through the Cold War.
The treaty dealt primarily with communications intercept information, known as signals intelligence or "sigint". Back in the early days of UKUSA cooperation, many long-distance or international phone calls were carried by longhaul HF radio, and were comparatively easily intercepted by a worldwide network of listening posts.