Scotland Questions 11.45 today - will we need border controls?

I am live in parliament shortly before PMQs in Scotland Questions, at around 11.45, asking whether independence would lead to Border Controls at Carter Bar and all along the border. I have 2 questions and will be interested how the Scot Nationalists fancy a new Hadrians Wall at the border? I do not want it and I can find few locals who want to lose the union, but we need to make the reality of the case of Scottish Independence plain to one and all - not least the Scots themselves - as Salmond still refuses to say what the reality of independence will be for both countries.