When Edward Gibbon was writing about the fall of the Roman Empire in the late 18th century, he could argue that transportation hadn't changed since ancient times. An imperial messenger on the Roman roads could get from Rome to London even faster in A.D. 100 than in 1750. But by 1850, and even more obviously today, all of that has changed.

The Arab states don't seem to do a good job of providing for their own people, so I am not sure why they would suddenly develop an ability to help the Palestinians.

It is a kind of ego booster, the way Egypt's winning the 1973 war, in the first stages, was an uplift. But I did not find when I spoke to people that the war in Iraq was seen as the major issue in American-Arab relations.

Carter's hopes died when the Soviet Union invaded Afghanistan and he ended up having to reverse policy and launch the military buildup that Reagan continued. Mr. Obama would be forced back into a war on terror if terrorist groups pull off enough damaging or frightening attacks to force this issue to the fore.