Re: Whitehall denialism
@Missing Semicolon - Remember remaining in the EU was both UK government and Conservative party policy until T.May's election, so there was no real reason for Cameron to do any preparation; other than to organise a referendum that would get the 'right' result. The real reason the (Conservative) government are in such a mess over Brexit is that they have put the preservation of the Conservative party at all costs above that of the nation.
D.Cameron's real mistake was to attach any value to the current incarnation of the Conservative party; he should have put the knife in when he had the chance and so create the opportunity for a new party to once again rise phoenix-like from the ashes...