Right, I understand.

[ Kakashi's not going to say much more than that because most of what he does have to say about all this... will be reserved for his fellow comrades. In person. Away from prying eyes and ears. ]

Well, in that case, if we do have to take a risk, I think either "classified" or "security" would be our best options. Maybe even "archives." Assuming they're not all cleared out, that is.