Is Europe Becoming a No-Go area for CIA Operatives?

I do not know the answer to that question but did read this article with interest. The key graft is the following:
"At CIA headquarters, a former CIA operation officer involved in the Italian case, speaking anonymously because the case is classified, said he and his colleagues were increasingly nervous about traveling in Europe for fear of getting swept up in the inquiries. He said he checked with a contact at the Italian intelligence service for reassurance he would not be arrested."
How bad have things become when CIA operatives cannot move comfortably through Europe?