European Union (Amendment) Bill

I have listened to many of the Committee proceedings, during which the hon. Gentleman has made a strong case for the Lisbon treaty. He made exactly the same point in The Scotsman. He cited the right hon. Member for Ross, Skye and Lochaber, a former leader of the Liberal Democrats, saying that a vote on the Lisbon treaty would effectively be an in-out referendum. If that is effectively an in-out referendum, why on earth do they not vote for it?