Politics is human beings; it's addition rather than subtraction.
We do know of certain knowledge that he [Osama Bin Laden] is either in Afghanistan, or in some other country, or dead.
Never assume the other fellow will not do something you wouldn't do.
Imagine, a September 11 with weapons of mass destruction. It's not 3,000. It's tens of thousands of innocent men, women and children.
If in doubt, don't. If still in doubt, do what's right.
Look for what's missing. Many advisors can tell a President how to improve what's proposed or what's gone amiss. Few are able to see what isn't there.