2白宫,总统政策指令 - 关键基础设施安全和弹性(2013年2月12日),https://obamawhitehouse.archives.gov/the-press-fress/2013/02/02/12/presidential-presidential-prolicy-policy-policy-dircection-directive-directive-critical-infrastruction-infrastructure-infrastructure-security-security-security-security-security-security-and-resil-resil-resil-resil。
主要关键词