The outbreak has so far remained regional, but it serves as a reminder that in an age of air travel by millions, no one is safe from the spread of infectious disease. Containing a disease or a terrorist threat by curtailing international travel or transport would devastate the world economy.
还有其他不那么“政治”的危险。西非正在经历可怕的埃博拉致命病毒大爆发，数千人将因此丧命。埃博拉病毒的爆发目前仍是地区性的，但它提醒我们，在这个数百万人坐着飞机满世界飞的时代，在传染病大爆发面前，没有人是安全的。通过切断国际旅行或交通战胜一种疾病或恐怖威胁会摧毁世界经济。