European Union Bill

Is the great distinction about referenda which the noble Lord is making—he has made it twice this afternoon—whether a decision once taken becomes irreversible, and that in that category there should be a referendum; and that in other categories there should not? If so, why will there not be a referendum on reform of the House of Lords? Surely that will in practice be an irreversible decision. Once you have a democratically elected legislative Chamber, you can hardly go back on that.