Others have already remarked that when Alex Salmond said the "No" campaign in the Scottish Referendum was "negative", he was stating the obvious.
And, on the whole, he has to be given credit for a positive "Yes" campaign. I think we can all agree that the "Yes" campaign is positive.
But the "don't know" campaign. I don't know. In my opinion it's been really quite uncertain.
I'm positive about that.