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.

The American people are extraordinarily comfortable, affluent, and secure. It's easy for us to make the argument that God's purpose is being fulfilled through history and through the rise of American power. And to some degree, it probably is.

Unlike some, I don't claim to hold the mystic key to the future. But judging from past events, it seems to me that those who want to prophesy the imminent end of America's unique global role have a harder case to make than those who think we will limp on for a while, making a mess of things as usual.

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.

Mr. Obama's approach to engagement to some degree makes him dependent on people who wish neither him nor America well. This doesn't have to end badly and I hope that it doesn't - but it's not an ideal position after one's first year in power.

Life isn't easy, and leadership is harder still.