美国国家恐怖主义咨询系统的公告警告说，在伊朗遭到袭击后，美国的“受威胁环境加剧”。

Core Viewpoint - The announcement from the U.S. National Terrorism Advisory System indicates an increased "threat environment" in the U.S. following attacks on Iran [1] Group 1 - The U.S. is experiencing heightened security concerns due to recent events involving Iran [1]