The only reason the Americans are taking casualties is because they insist on fighting with one hand tied behind their backs. That is what cost them in Vietnam. When will they learn that war can't be won like that. If they so desired they could totally destroy any city in Iraq. They could do it without losing one soldier by using the weapons they have at their disposal. They could simply turm Faluja into a mass of ruble. But they won't. That is why the resistance continues. These same people cowered under Saddam. Why? Because he wouldn't have played by the rules. He wouldn't have waged war with one hand tied behind his back.