We could see it coming when, upon a recent visit to Palestine, a young Palestinian child asked me if I was with Fatah or with Hamas, the two rival and politically irreconcilable groups in the Palestinian territories. I answered, spontaneously, that I was simply a Palestinian -- to which the young man seemed bewildered. The Palestinian people, we are being told, no longer have Israel's 40-year-old occupation as a common enemy, but a bloody and almost tribal war to decide who should speak for the Palestinians. What we are witnessing is a civil war in Palestine. But it is civil...