You're linking to an article on corporate spying. We're discussing spying on government officials on, what I can only assume, is a lot more serious matters, i.e waging wars.
This is a trust/image issue for the states, and it's really taking a beating right now.
Lets not make the same mistake that most people were making regarding the NSA before these leaks: it makes logical sense that EU governments would spy on everyone they technologically can; ergo we must assume that they are.
Just like our last 4 comments. But here I am, giving you my morning coffee time.
I digress. I think ultimately you have to decide to accept current practises as inevitable, or malleable.
I for one, do not think allies should spy on each other. Being caught so would have punitive repercussions such as increases in trade rates. If perpetrator makes a big deal about it, then find better allies, and then they can spy all they want.
This is a trust/image issue for the states, and it's really taking a beating right now.