That is a task of the utmost importance and delicacy since it involves the constant striking of a balance between the sometimes conflicting goals of national and international security and the rights of individuals.
这是一项非常重要和非常微妙的任务，因为它涉及在有时相互冲突的国家和国际安全目标与个人权利之间持续不断地求得平衡。