Does the head of state of every country "need to know" everything? Is nothing kept from them?

I know that I don't need info about things that I could never do anything about. You would hope that the leadership of a country would have fresh, vital and pertinent info to respond to or act on. They are the only ones out there in a position to do anything on the world scene.

How is it prudent to keep the leader in the dark?

Since no one knows even half of anything, I'm sure we do not have to worry about anyone but GOD knowing everything.    And, He is laughing at us.   Laughter on his dust lips.

i dont think so