Having promised for months during the 'renegotiations', David Cameron has resorted to the 'Chicken Licken defence' of the EU, threatening that the sky, and everything else, will fall down if Britain decides to leave the EU.
According to Cameron Licken and the increasingly desperate 'remain' lobby, the economy will fall down; so will security; so will the City of London, investment, science research, the UK union, farming - you name it and the-end-of-the-world-is-nigh for it.
It's simply not a credible position. If it was, would the more hawk-like Cameron of the General Election, who promised a reformed EU, or we're out, have risked the end of civilisation on such scant reforms as a bit of migrant benefit tinkering and some minor adjustments to things we had already?
In contrast, the 'leave' campaign is a diverse amalgam of disparate groups all making positive arguments for a Brexit. And any campaign which brings together the likes of Michael Gove, George Galloway, Boris Johnson and Nigel Farage in a common cause and argument must have something going for it.
Next week, Chicken Licken is sure to be joined by The-Boy-Who-Cried-Wolf and Private "we're doomed" Frazer, in a bid to really nail down their argument.