I just think it's strange that you can't arrest priests until after you declare war, when arresting priests would seem like a great way to provoke a war. Limiting arrests to after the war doesn't make wars more likely, it makes them less likely, as it establishes high costs for escalation.
It didn't use to be this way. Though I dislike priests preaching in my lands without having any easy way of dealing with them, it beats the old way of things where no one would ever care for priests. This no-arrest-without-declaration is necessary for the viability of the priest game, imo.
