...In an extraordinary intervention, Sir John cast doubt on the “enticing” promises being offered to voters and attacked Ms May and her ministers for saying nothing about massive Brexit costs – including a potential £60bn divorce bill – and major potential damage to the NHS and welfare...“If anyone genuinely believes that Europe will concede all we wish for and exact no price for doing so, then they are extraordinarily naive.” Sir John then turned his guns directly at Ms May’s Brexit White Paper for making no mention of the divorce bill for Britain – potentially up to £60bn –which EU chief negotiator Michel Barnier is pursuing. While Sir John said he finds the figure contentious, he went on: “The bill will be substantial. Billions, not millions, and very unpalatable. It will come as a nasty shock to voters who were not forewarned of this – even in the recent White Paper.”...