Say what you will about the Arab world, it's hard to earn its gratitude. President Obama went to Egypt and not Israel. He demanded that Israel cease adding new settlements in the West Bank. He treated Prime Minister Binyamin Netanyahu with a chilling disdain. For all of that, though, Obama's approval rating in Arab countries has sunk. Unlike almost a fifth of Americans, the Arab world clearly knows Obama is no Muslim.

The polls show some startling numbers. When this spring the Pew Global Attitudes Project asked residents of Islamic countries what they thought about Obama, he got good marks when it came to such matters as climate change. But when the question was the Israeli-Palestinian conflict, the numbers not only declined in Indonesia and Turkey, they nearly went through the floor in the three Arab countries polled. In Jordan, 84 percent disapproved of the way Obama was handling the Israeli-Palestinian conflict. In Egypt, the figure was 88 percent and in Lebanon it was 90 percent.

For Obama, the figures must be disheartening. They strongly suggest that his attempt to woo the Arab world, to convince it that America can be an honest broker between Israel and the Palestinians, has dismally failed. In fact, the extent of this failure is most stark in Lebanon. There, 100 percent of Shiite respondents -- in other words, Hezbollah and others -- have no faith in Obama and his good intentions. This may be a setback for Obama, but it is paradoxically a success for American values.

What the Arab world seems to appreciate is that America will never agree to what the Arab world most wants -- an Islamic state where a Jewish one now exists. This entirely reasonable conclusion is based on what has long been American policy -- not what the State Department wanted but what the American people supported. America has always liked the idea of Israel. The Arab world, for totally understandable reasons, has always hated it. Nothing has changed.

A fundamental document in this area -- a once-secret CIA analysis from 1947 -- was unearthed (to my knowledge) by Thomas W. Lippman and reported in the winter 2007 issue of the Middle East Journal. The CIA strongly argued that the creation of Israel was not in America's interests and that therefore Washington ought to be opposed. This was no different than what later diplomats and military men (most recently, David Petraeus) have argued and it is without a doubt correct. Supporting Israel hurts America in the Islamic -- particularly the Arab -- world and, given the crucial importance of Middle Eastern oil, makes no practical sense.

The CIA further argued that the so-called Arab-Israeli conflict would soon widen to become an Israeli-Islamic conflict -- another bull's-eye for what was then an infant intelligence service. That process was already underway, which is why some non-Arabs (Bosnian Muslims, for instance) fought the creation of Israel, and has only intensified as radical Islam, laced with healthy doses of anti-Semitism, has gotten even stronger.

But where the CIA went wrong -- and not, alas, for the last time -- was in predicting that the Arabs would defeat Israel and that the state would not survive. The CIA was pretty sure of the outcome, what a later CIA figure might have called a "slam dunk."

What neither the CIA nor, for that matter, the anti-Israel State Department recognized in the late 1940s is that America's interests are not always measurably pragmatic -- metrics, in the jargon of our day. Sometimes, our interests reflect our national ethic, an affinity for other democracies, sympathy for the underdog. These, too, are in America's interests and they may be modified, but not abandoned, for the sake of mere metrics.

This is why Obama's overture to the Arab world, clumsily executed, was never going to succeed. America can please some Arab governments -- Egypt and Jordan, for instance -- but not the Arab people. What they want, and what they have been told repeatedly they deserve, is a return of Palestinian refugees to what is now Israel and control over all of Jerusalem. These are both out of the question as far as Israel is concerned. It is not willing to give up its capital and, in a relatively short time, its Jewish majority.

This week, Palestinians and Israelis will once again talk peace in Washington. But until both sides, particularly the Arab peoples, give up on what they really want, the clock will remain where it has been. Those Pew polls show that's around 1947.