A generation ago, when all the world learned the word “terrorist,” Yasser Arafat was the teacher. For 20 years, the movement he led openly used the killing of innocents as a political tool. Arafat, Hamas, and the mass of the Palestinian people already have squandered the best chance for peace in recent history – the 30, 60, or 90 days following the Sept. 11 attacks. Imagine if the leadership had really renounced terror then – and by renounce terror, we mean “stop blowing up Israeli civilians and finger some terrorists.” Instead, too many Palestinians have clung to killing utterly innocent people. But only Palestinians themselves, not the wishful thinking of the rest of the world, can stop these suicidal attacks.