As Berlin Walls go, the 20-foot-high dirt berm around Iraq's southern port of Umm Qasr — the first wall to fall in the liberation of Iraq — isn't much to look at, but it's a fitting symbol for this war. It is a sand wall, easily breached by American power, exposing a rotten dictatorship with little popular support on the other side. This area is full of regimes protected by such sand walls. But unlike the Berlin Wall, whose fall unleashed a flowering of freedom all across Eastern Europe, the fall of the Sand Wall alone will not do that....