For decades there has been a bipartisan consensus that a two-state solution is the best means of resolving the Israeli-Palestinian conflict. But in a lecture tonight at the University of Swansea, published exclusively  by The Staggers, Peter Hain will become the first British figure with direct ministerial experience to argue that after decades of failure, a one-state solution - the establishment of binational state with equal rights for Israelis and Palestinians - must now be seriously considered.
Hain, who served as minister for the Middle East from 1999-2001, will say:
For two decades I have favoured a two-state solution as the best plan for peace and the fairest outcome, one backed by the US, the United Nations, the European Union and all 22 countries of the Arab League. Officially, it’s the stated policy of the current Israeli government and of the Palestinian Authority.
But I am increasingly unsure about whether it’s still achievable – mainly because, as time has marched on, and successive negotiating initiatives have come and gone, the land earmarked for a viable Palestinian state has been remorselessly occupied by Israeli settlers.
And I’m not alone. John Kerry and William Hague have both talked of "the window for a two-state solution" closing. In April 2013, prior to launching yet another peace initiative, the US Secretary of State warned: "I think we have some period of time – a year to a year-and-a-half to two years or it’s over." On 18 June 2013, the British Foreign Secretary echoed those words in the House of Commons: "time is running out for a two-state solution".
There is also a marked dissonance between popular support for a two-state solution on the one hand, and popular scepticism that it is achievable on the other. A 2012 poll by the Konrad Adenauer and Ford Foundations showed that 70 per cent of both Israelis, and Palestinians in the West Bank and Gaza, thought the chances of establishing an independent Palestinian state by 2017 were "low" or "non-existent".
The fundamental problem is this: sooner rather than later the land available to constitute a future Palestinian state will have all but disappeared.
Indeed, in defiance of the UN, the US and the EU, the Likud-led government has continued to expand Israeli settlements in the West Bank and East Jerusalem to the point where there are now more than 550,000 settlers there, controlling 42 per cent of the land and representing nearly 10 per cent of the Israeli Jewish population. With every new settlement that is constructed, the possibility of a viable and contiguous Palestinian state recedes further.
At least rhetorically, Binyamin Netanyahu has committed to a two-state solution. In 2009, he declared that he was willing to see the establishment of a Palestinian state, albeit one barred from having an army and controlling its airspace. But through his actions he has repeatedly undermined this pledge.
As Hain will go on to say:
[I]f Israel’s relentless expansion into Palestinian territories cannot be stopped then we must face one of two possible outcomes. The first is that all Palestinian presence in the West Bank and East Jerusalem remains in a permanent and ever-more formalized "Bantustan status", islands of minimal self-governance with the continued denial of basic rights, facing on-going pressure, perpetual insecurity and possible future physical removal. The second is that they are absorbed into a common Israeli-Palestinian state with the opportunity for pluralism and human rights advancement.
Is that solution now the only one capable of stopping the cycle of violence and preserving Israel’s potential to become a force for unity and peace, instead of a beleaguered source of division and a target for attack? And if the window for the two-state solution is indeed closing, then should the EU, the US and the UK make it plain to Israel that a one-state alternative may be the only one available to ensure its security?
A one-state solution has long been the favoured option of many secular Israelis and Palestinians for reasons of principle. What has changed is the number who now support it for reasons of pragmatism. Hain will conclude:
[W]hat guarantees might there be for Jewish citizens both within Israel and worldwide if they agree the merger of their creation – a Jewish state which they fervently (and understandably) believe answers their post-Holocaust question: "Never Again"? Could the Arab nations join those in the West like the US and the UK to provide such guarantees?
What sort of common state might then be politically feasible and deliverable? Could a federal or confederal state provide a way forward, with common security, a unified economy, common civil rights and guarantees of religious freedom for Jews and Muslims, but considerable political autonomy for the territories within it of "Israel" and "Palestine"? How then might Israeli and Palestinian security forces be integrated?
These are fundamental, difficult and complex questions – but, if successfully answered, could a common state solution more easily resolve the deadlock than the two-state solution I and many others have long-favoured?
I remain uncertain. But I ask because I do not see how either the Israelis or the Palestinians can secure their legitimate objectives by perpetuating for still more decades their unsustainable and unstable predicament, with a two-state solution slipping away while violence and terrorism lurks constantly.
His questions are ones that no responsible leader can now afford to ignore.
Update: Labour has been swift to slap down Hain. A spokeperson told me this afternoon:
Peter Hain does not speak for Labour on foreign affairs and his views on the Middle East Peace Process do not represent Labour Party policy. Labour is fully committed to a two-state solution with a viable Palestinian state living side-by-side with Israel, and we support the ongoing work of US Secretary of State, John Kerry, to help re-start negotiations towards achieving this goal.
The spokesperson also pointed me to Douglas Alexander's speech in July 2013 in which he said:
"…to those who say a two state solution is now a fantasy, I say it is a fantasy to think a one state solution could ever be either sustainable or consistent with Israel’s democratic values.
A one state solution is simply not a solution at all. It would mean either the demise of Israel as a Jewish state or the demise of Israel as a democratic state. It would be the end of the dream of national self determination for the Jewish people."