yeah, just in the context of a smoking-gun type letter it seemed to indicate a lack of confidence in the letter. As you note, I may be reading too much into it. It would depend on part if this type of hedged answer is typical for tenet, something I don’t know.
In the context of a “smoking gun letter,” where’s that letter? “Somebody I know saw the gun. He said it smoked. I don’t know where it is.”
If you want to have a chance to stay out of the slammer, this is the way you have to say it. Even that didn't stop Scooter Libby from being convicted.