The nuclear option runs like this: The union is “nothing more” than a treaty between two kingdoms, that the Scots – as a sovereign people – are “the highest authority” in Scotland; “higher than any government or monarch.” Therefore, by giving the people of Scotland a vote in the Brexit referendum, the British government has made a serious mistake. By rejecting Brexit, the Scottish people now have a simple right to rescind the union. Now that the Scottish government has pushed on every door, which includes Nicola Sturgeon appearing in London to call for a People’s Vote...