Shinobis

[caravel]

I think Asai is correct here. Every turn that your shinobi fail to catch an infiltrator will let him increase his honour.
Is there a thread discussing how ninja build up honour?
Shinobi seem to add 1 honour with every kill but ninjas take several kills unless the chance of success is low.

That's not quite what I was saying. A Shinobi/Ninja does not gain honour by evading capture. My point is that while a Ninja is in the province killing your emissaries/priests/generals/daimyo/geishas, he is gaining honour and thus getting more and more difficult for your counterspies to catch.

Shinobi gain honour from catching an infiltrator or causing a revolt, ninja seem to also gain honour from catching infiltrators and successful assassinations - I'm not sure if Ninja gain less honour from catching infiltrators though (it certainly does seem so).