translation.en: We rearranged the national security apparatus of the United States and of many governments to address a threat that, at the time that those attacks took place, was quite limited.
translation.zh: 我们重组了美国的国家安全机构， 其他许多政府也同样做了， 目的是针对恐怖袭击发生时， 可能存在的威胁 而实际上这种威胁很有限。