Government of Wales Bill

I have listened to the Secretary of State’s comments with great interest and I acknowledge that he is genuinely attempting to acknowledge the concerns as highlighted by my Liberal Democrat colleagues in the other place and others. To an extent, his remarks have been reassuring and helpful. However, he has not answered the underlying question. Why not give the full authority to call and plan a referendum to the Welsh Assembly? Why does the Secretary of State need to have any role in that procedure? I understand that this Secretary of State thinks that that is necessary, but I would be interested to know his rationale.