These folks are quite easy to spot: Just look for someone who is obviously way to intelligent and clever for his job. Like someone with a Ph.D. in international affairs from Harvard and Yale who is doing clerical work at the embassy.
A doctorate level degree does not make you intelligent or clever. And what is the point in not explicitly naming the station chief if they are so easy to spot?
Oh, here's an interesting Pro-Tip: If a foreign diplomat wants to hand you a piece of paper with an explanation of why their country just did something very nasty . . . you don't touch it. You instruct him to read it out loud. If you put your hands on it, his country will report that you "accepted" the explanation. If you don't, you will only hear in the news that the diplomat "read out load" or "recited" the explanation. This is the next thing that you will hear about this, as the professional diplomats from Germany and the US try to paper over the cracks left by the spooks.
Say what? They can't hand each other pieces of paper or they are "accepting" explanations? Do you have some sort of reference for this? This is the most asinine thing I have ever heard, and I have never seen a news story or report where it mentioned a diplomat "recited" or "read out load [sic]" anything. By your explanation everything would have to be done verbally and nothing could ever be done via letter. Were you a member of the diplomatic corps or otherwise employed by the state department?
I don't mean to sound like I am attacking you. I have just never heard anything like this before and I would like to know more about it.