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.

Jordan is the only Arab state that has provided citizenship to Palestinian refugees and integrated them. But something has to be done about the Palestinians living in refugee camps in Syria and Lebanon.

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.

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

We Americans look at the last 300 years of history, and we basically see a world that's getting better and better. The rule of freedom expands. The economy develops. We have risen to become the world's greatest power.

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.

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.