The costs of not having a currency union between an independent Scotland and the rest of the UK would be eight times higher north of the border, Labour leader Johann Lamont claimed.
Nicola Sturgeon has predicted Alistair Darling, the No campaign leader, will argue for a currency union following a Yes vote.
During last week's currency wars I was reminded of something Grant Baird, once Alex Salmond's boss at the Royal Bank of Scotland, said when his protégé was first elected to parliament in 1987.
The war of words between Westminster and Alex Salmond's government over whether an independent Scotland could use the pound escalated today as the Scottish First Minister defended his plans for a currency union.
Misinformation and "sleight of mouth" by Alex Salmond and Nicola Sturgeon and others are showing how the lack of real information from their party is now coming to light.