As the Secretary of State has outlined, this Bill will provide the legal framework for establishing a domestic nuclear safeguards regime. Nuclear safeguards are essential obligations to ensure that work and materials for civil nuclear do not get transposed into work or preparations for military nuclear, and that is done under the umbrella of the nuclear non-proliferation treaty. Arguably, the UK already has a perfectly good set of nuclear safeguards through its membership of Euratom, so why is the Bill needed?
The Bill is a contingency measure, as the Secretary of State has helpfully illustrated. If we are to leave Euratom, and if there is no associate membership that gives us continued nuclear safeguarding provisions, we will need to put in place a new system of safeguarding, and that needs to be to the satisfaction of the International Atomic Energy Authority. Now that takes us into rather strange territory: we have not yet left Euratom; it is not clear whether we have to leave Euratom; the House has not agreed that we should leave Euratom; and we have not put in place any parliamentary procedure for agreeing that we should leave Euratom. In effect, the Bill is based wholly on the declaration that the Prime Minister made in her letter to the EU informing it that we were going to invoke article 50—