Re: So that's the big deal
Nice example of sloppy, woolly thinking and sloppy, woolly ethics, sloppily and woollily expressed.
The most important fact that your post ignores and obfuscates is that there is a huge difference between a private citizen, perhaps unconsciously, committing a marginal breach of a law that many other citizens (and government employees) often break - and a key government department quite deliberately breaking the law in order to spy on citizens.
As for the subsidiary question of whom to hold responsible (and prosecute, and punish to the full extent of the law), that's obfuscation too. Someone is certainly responsible when a government breaks its own laws, and it seems most unlikely that no one knew that. If you don't wish to blame "the spooks" for breaking the law, then blame their bosses. If necessary, indict the Prime Minister of the time. (Although isn't there a legal maxim about ignorance of the law being no excuse?)
If you are in any way uncertain about the difference between a government and its citizens, here are a couple of important things to remember.
1. The government works for the citizens - not vice versa.
2. The government and all its employees are paid by the citizens.
3. The government is accountable to the citizens.
"When the people fear their government, there is tyranny; when the government fears the people, there is liberty".
- Thomas Jefferson