European Union (Amendment) Bill

My right hon. and learned Friend the Member for Rushcliffe (Mr. Clarke) drew attention to a much narrower set of passerelles in an earlier treaty, and said they had hardly been used. However, does my hon. Friend not agree that, even if that had been the case in the past, this House should be very jealous of giving away its powers, particularly when those who are urging us to give them away argue that they will never be used?