America has entered one of its periods of historical madness, but this is the worst I can remember: worse than McCarthyism, worse than the Bay of Pigs and in the long term potentially more disastrous than the Vietnam War.

The reaction to 9/11 is beyond anything Osama bin Laden could have hoped for in his nastiest dreams. As in McCarthy times, the freedoms that have made America the envy of the world are being systematically eroded. The combination of compliant US media and vested corporate interests is once more ensuring that a debate that should be ringing out in every town square is confined to the loftier columns of the East Coast press.

The imminent war was planned years before bin Laden struck, but it was he who made it possible. Without bin Laden, the Bush junta would still be trying to explain such tricky matters as how it came to be elected in the first place; Enron; its shameless favouring of the already-too-rich; its reckless disregard for the world’s poor, the ecology and a raft of unilaterally abrogated international treaties. They might also have to be telling us why they support Israel in its continuing disregard for UN resolutions.

But bin Laden conveniently swept all that under the carpet. The Bushies are riding high. Now 88 per cent of Americans want the war, we are told. The US defence budget has been raised by another $60 billion to around $360 billion. A splendid new generation of nuclear weapons is in the pipeline, so we can all breathe easy. Quite what war 88 per cent of Americans think they are supporting is a lot less clear. A war for how long, please? At what cost in American lives? At what cost to the American taxpayer’s pocket? At what cost — because most of those 88 per cent are thoroughly decent and humane people — in Iraqi lives?

How Bush and his junta succeeded in deflecting America’s anger from bin Laden to Saddam Hussein is one of the great public relations conjuring tricks of history. But they swung it. A recent poll tells us that one in two Americans now believe Saddam was responsible for the attack on the World Trade Centre. But the American public is not merely being misled. It is being browbeaten and kept in a state of ignorance and fear. The carefully orchestrated neurosis should carry Bush and his fellow conspirators nicely into the next election.

Those who are not with Mr Bush are against him. Worse, they are with the enemy. Which is odd, because I’m dead against Bush, but I would love to see Saddam’s downfall — just not on Bush’s terms and not by his methods. And not under the banner of such outrageous hypocrisy.

The religious cant that will send American troops into battle is perhaps the most sickening aspect of this surreal war-to-be. Bush has an arm-lock on God. And God has very particular political opinions. God appointed America to save the world in any way that suits America. God appointed Israel to be the nexus of America’s Middle Eastern policy, and anyone who wants to mess with that idea is a) anti-Semitic, b) anti-American, c) with the enemy, and d) a terrorist.

God also has pretty scary connections. In America, where all men are equal in His sight, if not in one another’s, the Bush family numbers one President, one ex-President, one ex-head of the CIA, the Governor of Florida and the ex-Governor of Texas.

Care for a few pointers? George W. Bush, 1978-84: senior executive, Arbusto Energy/Bush Exploration, an oil company; 1986-90: senior executive of the Harken oil company. Dick Cheney, 1995-2000: chief executive of the Halliburton oil company. Condoleezza Rice, 1991-2000: senior executive with the Chevron oil company, which named an oil tanker after her. And so on. But none of these trifling associations affects the integrity of God’s work.

In 1993, while ex-President George Bush was visiting the ever-democratic Kingdom of Kuwait to receive thanks for liberating them, somebody tried to kill him. The CIA believes that “somebody” was Saddam. Hence Bush Jr’s cry: “That man tried to kill my Daddy.” But it’s still not personal, this war. It’s still necessary. It’s still God’s work. It’s still about bringing freedom and democracy to oppressed Iraqi people.

To be a member of the team you must also believe in Absolute Good and Absolute Evil, and Bush, with a lot of help from his friends, family and God, is there to tell us which is which. What Bush won’t tell us is the truth about why we’re going to war. What is at stake is not an Axis of Evil — but oil, money and people’s lives. Saddam’s misfortune is to sit on the second biggest oilfield in the world. Bush wants it, and who helps him get it will receive a piece of the cake. And who doesn’t, won’t.

If Saddam didn’t have the oil, he could torture his citizens to his heart’s content. Other leaders do it every day — think Saudi Arabia, think Pakistan, think Turkey, think Syria, think Egypt.

Baghdad represents no clear and present danger to its neighbours, and none to the US or Britain. Saddam’s weapons of mass destruction, if he’s still got them, will be peanuts by comparison with the stuff Israel or America could hurl at him at five minutes’ notice. What is at stake is not an imminent military or terrorist threat, but the economic imperative of US growth. What is at stake is America’s need to demonstrate its military power to all of us — to Europe and Russia and China, and poor mad little North Korea, as well as the Middle East; to show who rules America at home, and who is to be ruled by America abroad.

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