What exactly is the use of the espionage rating (the one that can be influenced by certain techs like counter-espionage or by choosing the Krynn)?
Where is it used for which calculation?

Does it lower spy costs (not that I know, of yet)?
Does it increase chances to steal tech (can't test that)?
Does it increase the rate at which you gain knowledge about other civs (can't test that either, properly)?

If anyone out there in this universe of GC2-lovers knows something about that, I would be very grateful if he taught me.

Thanks in advance,
Notger.