You would expect the editorial board to gush, but a commemorative demonstration of ignorance caps their celebration of the momentous event with just the right note of foolish conceit.

Mr. Obama's commitment to Israeli-Palestinian peace is already being tested by Israel's new prime minister, who says he doesn't believe in a two-state solution.

Americans can feel both pride and relief at the enthusiastic welcome Mr. Obama has received in his early travels abroad. The president will soon have to find ways to leverage that popularity. He must persuade European allies to contribute more troops and resources to Afghanistan. If negotiations with Iran fail, he will have to convince Europe, Russia and China to impose tough sanctions to try to constrain Iran's nuclear ambitions.