David Dimbleby chairs the topical debate from Newport, with a panel of prominent public figures and an invited audience.
The panel includes Liberal Democrat politician Baroness Shirley Williams, Secretary of State for Wales and Conservative MP Cheryl Gillan, shadow Welsh Secretary and Labour MP Peter Hain and Plaid Cymru MP Elfyn Llwyd.
The panel will also include journalist Janet Street-Porter and editor of The Spectator Fraser Nelson.
