I think a better analogy is the human analog of what this is - spying. Not noticing a spy in your company, university, army headquarters for 15 months is hardl

I think a better analogy is the human analog of what this is - spying. Not noticing a spy in your company, university, army headquarters for 15 months is hardly an indictment of one's counter-espionage - especially if as it seems they did very very little till Feb, and did it very carefully.