You are old. I hope for your sake that, in a few years, you don't get Alzheimer's, even though it would be fitting after all the ridiculously stupid shit you've said about McCain.
Back to the topic...
I don't know what it's like to be interrogated, and you probably don't either. Maybe McCain has repressed those memories from 35+ years ago. Maybe during the course of interrogation, his mind is elsewhere. Maybe other things are more important today than remembering what NFL team's roster he recited in Vietnam.
As Toadman said, you're grasping at straws, and stupid bullshit like this is why our whole political system is a joke. Don't focus on issues...who cares about that anyway?
For someone who served and fought for our freedoms - for our right to vote - I would think you'd have a little more reverence; a little more insight, and not vote against someone because he's "old". I guess I expect too much.