Are they sure the brain damage is from the surgery?
It could be that clinton is suffering from syphilitic dementia.
I don't know about the syphilitic portion of the dementia but when Clinton walked on stage the other day there for a couple of seconds he had the same look on his face and more importantly in his eyes that my 85 year old father had, a few years before his death, as my father's lines to reality
slowly slipped loose.