>
>"I don't remember, I don't recall
>I've got no memories of anything at all"
>
> --Talking Heads

Isn't that what Bill clinton said when asked about having sex with Monica, no wait he said, "I did not have sex with that woman...." Sure I don't remember will cause you to dig further, but if you look at the entire situation, you can only go so far when you don't have other corroborating evidence. I don't expect people to remember every detail of every conversation, and I doubt the prosecutor did either, they were just out to destroy Bush and Co.