The position is much as though they had got hold of an incriminating document, but couldn't read it because it was in cipher but we know that the draft treaty wasn't in cipher couldn't be in the nature of things so that won't wash.
Incriminating documents are almost always written in cipher.
mnli hypothesis: Incriminating documents are almost always written in cipher. premise: The position is much as though they had got hold of an incriminating document, but couldn't read it because it was in cipher but we know that the draft treaty wasn't in cipher couldn't be in the nature of things so that won't wash.