So this seems to be more about the retention of data than it is about the collection. Where the retention of all data is not as important as a select few that pertain to national security. I'd love to play devils advocate here and claim that the agency requires all the information or court oversight of a spy agency is ludicrous. But I dont think any one branch should be judge jury and executionor. I wonder how much of this is symbolic? I know here in the US we are lucky to even hear about a segment of what happens. But I can certainly argue that many questionable deeds are done in the interest of the american citizens