Alistair Darling counters saying that a currency union is "not like a CD collection that you split up in a divorce".
Even if you got one [a currency union], I can't understand why the nationalists would want one because our borrowing, our tax and our spend would be decided not in Edinburgh but in what would be a foreign government in London.
With just a few weeks to go until the Scottish independence referendum takes place, here are some key facts about the vote.
An investigation has been launched after listings appeared on eBay offering to sell votes in the upcoming Scottish independence referendum.
Bounce for leaving the union following second debate this week, but only 43% expected to vote yes in referendum on September 18