They are UK centric only on outside appearance. Notice how we have given intelligence agencies unlimited powers under the very simple condition that they can no

They are UK centric only on outside appearance. Notice how we have given intelligence agencies unlimited powers under the very simple condition that they can not spy domestically? It works the same way in the UK. So the way this works is that the NSA will spy on Britons, the GCHQ spies on Americans, and everyone comes together to exchange notes.