 核恐怖主义是对全球安全最直接和最极端的威胁，因此，要求对国内和全世界的行动做出坚定而持久的承诺。美国继续采用新做法并学习其他国家的经验，以便继续超越不断变化的威胁环境。
• Nuclear terrorism represents the most immediate and extreme threat to global security, requiring a strong and enduring commitment to domestic and worldwide action. The United States continues to apply new approaches and learn from the experience of others in order to remain ahead of an evolving threat environment.