As I argue in my book The Future of Power, global interdependence involves both sensitivity and vulnerability. The US may be less vulnerable in the long run if it imports less energy, but oil is a fungible commodity, and the US economy will remain sensitive to shocks from sudden changes in world prices.
但下结论不能操之过急。能源进出口的平衡只是通往能源独立的第一步。我在近著《实力的未来》（The Future of Power）中指出，全球互助性既具有敏感性，也具有脆弱性。如果美国能源进口量有所减少，那么从长期看它的脆弱性将会减小，但石油是一种可替代商品，而美国经济仍然对世界油价的突然变化所带来的冲击非常敏感。