All of the UK national papers have had their hands on this for some time. The papers have obeyed the government into not publishing the story. The Register deemed that there is no harm that can be done to the state. As diodesign repeats in another comment (edited):
"The [UK] government have made it plain that in their view not only foreign powers (ie probably Russia and others) have full access to the Snowden leaks, but quite possibly 'non state actors' also. ..it seemed to us that the public should know - as there's no further intelligence hit for UK.gov to take, by its own analysis."
Because right now people have access to GPG and can send information reasonably securely to journalists.
But don't worry, a 3 [or 4] letter agency near you is working real hard on that.
The stuff about terrorists can wait as that's not quite as important as stopping you knowing about what the agency is up to. The supposed masters in charge of limiting them - government ministers - are willfully compliant in the manipulation and deceit.
[edit:spelling; I wish english was my first language.]
Those of us working with the UK government probably all just had to double-take then to work out which GPG you meant :P (There was a UK government security document series called GPG)
"The [UK] government have made it plain that in their view not only foreign powers (ie probably Russia and others) have full access to the Snowden leaks, but quite possibly 'non state actors' also. ..it seemed to us that the public should know - as there's no further intelligence hit for UK.gov to take, by its own analysis."