Or perhaps it would be more accurate to describe the problem as one of wild swings in US domestic politics between excessive isolationism and excessive foreign intervention in response to short-term events, and untempered by any longer-term historical perspective. These days, after a decade of war in Iraq and Afghanistan at an estimated cost of $4 trillion (including the medical care that veterans will need for the rest of their lives), the pendulum has apparently swung back in the direction of isolationism.
但主要的问题似乎是缺乏意愿而不是经济的匮乏。或者可以把问题更准确的描述为：美国国内政治在应对某些短期事件时在过度孤立主义和过度干涉行为之间大幅摇摆，并缺乏任何长期历史视角的指导。到目前为止，也就是伊拉克和阿富汗战争结束十年以来，估计花费了4万亿美元（包括老兵们养老送终所需的医疗保健），钟摆的方向显然已经回到孤立主义那一侧。