[kergonath]

A finite number of failures absolutely does not imply that they never caught any spy except this one. What kind of logic is that?

Looking at the regular expulsions of embassy employees all over the world it should be rather obvious that there is a lot going on about which “we” never hear anything.

(By “we”, I mean normal people having other activities than following closely geopolitics. There is a lot of information to find if you are dedicated enough. A lot of misinformation as well.)