I entirely understand my hon. Friend's anxiety on that point. It is an anxiety shared by several Labour Members, most notably the hon. Member for Linlithgow (Mr. Dalyell) and, more recently, the hon. Member for Livingston (Mr. Cook). My hon. Friend puts his finger on one of the central dilemmas faced by those who would advocate setting up a separate Parliament with separate powers entrenched in Edinburgh in rivalry to the Westminster Parliament. That is incompatible with the integrity of the United Kingdom Parliament. It would not be sustainable or stable in the long term.