David Frum at the National Review relates this insight about President Bush:
Somebody who knew President Bush well once remarked to me. “You’ll notice he never asks questions.”
“Why not?” I said.
“Because he doesn’t know what it’s okay for him not to know.”
The article has some interesting analysis of Palin’s interview- and what Presidents should and do not have to know. In any case, I throw Palin into the above category that Bush currently occupies.