The Washington Post states it well in this morning's editorial:
"...Even if Saddam Hussein was not a collaborator of al Qaeda: Clearly Iraq is now a prime battlefield for Islamic extremists, and success or failure there will do much to determine the outcome of the larger struggle against them."
The president, as I suspect he will, needs to regularly and forcefully remind Americans, as he did lastnight, that our success in Iraq is not an option. Success there is imperative to our overall effort to triumph over Islamic jihadist terrorism.