[jacquesm]

One person knowing the identities of all your spies? That's a huge violation of the compartimentalization principle.

http://en.wikipedia.org/wiki/Compartmentalization_%28informa...

Of course you could say there was a 'need to know' but at a minimum there should have been many 'Fifi's', and preferably ones that did not come from occupied territory.

[praptak]

Also there's the "never follow patterns" principle. Interrogate enough spies and you might figure out they have been checked by the same person.

[lunchbox]

Ah OK thanks!