Z-11 and Ernie, I don’t want to intrude too much into your discussion, but feel I must correct at least one inaccuracy, which may or may not alter the course of your interchange:
Tom Watson did not say “the full Neville email”, what he said was “the ‘for Neville’ email”, as this is what is has come to be known as, as it had ‘for Neville’ written on it.
Tom Watson knew exactly what he was asking.