[danio]

It seems to me that data going over a publicly accessible network that is designed to let that data go by whatever route is necessary has been routed over a part of that network.

How is that a problem? You cannot expect your internet data to be private: the nature of the beast is that it will be public. Anything sensitive must be encrypted in such a way that by the time the encryption is broken by your enemy (considering the likely resources they have) the data is no longer useful.

Did I miss something?