The sex scandal engulfing two of our top military and intelligence officers could not be coming at a worse time: The Middle East has never been more unstable and closer to multiple, interconnected explosions. Virtually every American president since Dwight Eisenhower has had a Middle Eastern country that brought him grief. For Ike, it was Lebanon's civil war and Israel's Sinai invasion. For Lyndon Johnson, it was the 1967 Six-Day War. For Nixon, it was the 1973 war. For Carter, it was the Iranian Revolution. For Ronald Reagan, it was Lebanon. For George H.W. Bush, it was Iraq. For Bill...