If you want to know what's really at the heart of the Palestinian conflict with Israel, don't ask politicians or diplomats. Go to Palestinian children. Unlike the rest of the world, they've been paying close attention to what their leaders and educators have been teaching. And they are ready to practice what they've been taught. For instance, children interviewed on PA TV last week state without reservation that Israel has no right to exist, and that the goal for which they're willing to sacrifice their lives is Israel's destruction. "They [the Jews] came to take Palestine, that is, Tel Aviv,...