George Osborne is "bluffing" when he insists an independent Scotland cannot keep the Pound, according to Scottish First Minister Alex Salmond.
But when speaking to ITV News Chief Secretary to the Treasury Danny Alexander accused Salmond of bluffing too, claiming he has no currency plan.
Both sides of the debate are now firmly entrenched, reports Martin Geissler:
More top news
Revenge porn offenders who attempt to magnify their targets' humiliation will face the toughest penalties under new sentencing proposals.
A remarkably mild night with misty low cloud on the hills of Scotland, Wales and north-west England and further rain in places.
The former head of the Diplomatic Service breaks down the hidden meanings behind Theresa May's letter to Donald Tusk