The white paper is published next month. Some commentators expect this to be the launch of the campaign proper by the SNP. Supporters of independence hope that the white paper will finally refute claims that independence would leave Scotland vulnerable to terrorist attacks and other unknown threats, without a viable currency option, and excluded from the EU. But therein lies the problem. Supporters of independence are on the back foot. If the white paper is simply a response to the familiar litany of scare stories, then it will not move the debate beyond where it has been stuck – in a place that has advantaged its opponents.