Is the intelligence in SE(?) ok?

[se5a]

what if the size of the empire made a diference to how well intell worked, ie if an empire is small it would be harder to sabotage and spy on.
if it is larger it would be easyer.

also makeing repeted operations get more and more expencive agansed an empire (ie the other empire finds ways to prevent water contamination after it happens a copple of times, therefore makeing it a lot harder to acomplish)