[that actually explains quite a bit. Cao Pi schools his expression to one of a general sense of sympathy even if he would like to counter that concept with all the logic he can muster]

I see. And in some situations, yes, it would be wise to keep such things quiet. I'm not proposing a public broadcast of everyone who can or even might be able to do something, merely that there be a second pair of eyes to ensure that, for example, someone who intends to cause harm has less of a chance to pull it off. [he sighs softly, and the regret in it is genuine for once] We cannot prepare for every contingency but we can at least make it easier on ourselves to prepare for most of them. I should hate for someone to feel that all they have to do carry out their nefarious plans in secret is to have only one person standing in their way. One person, who could be intimidated or harmed.