罗斯福知道自己的敌人是谁和美国必需采取怎样的措施去应对，但布什必须选择和指名敌人，而且新型的战争没有明显的规则、目标和前线。
Whereas Roosevelt knew who the enemy was and what America would have to do, Mr Bush had to choose and name an enemy in a new sort of war without obvious rules, aims or front-lines.
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