更新于 2026年3月12日，美国东部时间凌晨1:33 / 发布于 2026年3月12日，美国东部时间凌晨12:49 / CNN政治版
作者：Holmes Lybrand、Josh Campbell
更新于 2小时前
更新于 2026年3月12日，美国东部时间凌晨1:33
发布于 2026年3月12日，美国东部时间凌晨12:49
中东、国家安全、联邦机构
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加州州长加文·纽森于2026年3月2日在加利福尼亚州海沃德的BACS REGIS中心举行的新闻发布会上与地方和州领导人一同发言。
旧金山纪事报/赫斯特/盖蒂图片社
加利福尼亚州州长加文·纽森周三表示，在联邦当局向州官员通报了伊朗相关势力可能发动潜在无人机袭击的未经证实的说法后，该州不存在“迫在眉睫的威胁”。
几位看过该备忘录的官员称，美国联邦调查局（FBI）发送给当地执法部门和加州官员的备忘录包含未经核实和验证的信息，仅供他们知悉。
备忘录中写道：“我们最近获得的信息称，截至2026年2月初，伊朗据称企图从美国本土海岸外一艘身份不明的船只上使用无人驾驶飞行器发动突然袭击，具体针对加州的未指明目标，前提是美国对伊朗发动打击。”
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联邦调查局经常出于谨慎考虑，向当地执法合作伙伴分享可信度存疑的信息。
一位执法部门消息人士称，联邦和州安全官员认为这些信息本质上是“有抱负的”，目前不认为存在迫在眉睫的威胁。
一位执法部门官员表示，美国情报界会例行收集对手表明其意图造成伤害的情报，但仅仅是宣称并不意味着对手有能力实施袭击。
消息人士称，这类报告“每天”都会与当地执法部门分享。
纽森在社交媒体上表示，他“一直在与安全和情报官员协调”，应对针对加州的潜在威胁，“包括与中东冲突相关的威胁”。
“虽然目前我们未发现任何迫在眉睫的威胁，但我们仍在为加州可能发生的任何紧急情况做好准备，”纽森写道。
唐纳德·特朗普总统周三晚些时候表示，政府正在调查这一未经证实的说法。
“此事正在调查中，”总统在被问及FBI备忘录时告诉记者，“但有很多事情在发生，我们只能见机行事。”
当被追问是否已经了解美国境内可能存在的伊朗潜伏人员数量时，总统告诉记者：“我已经了解了。”
加强的警告
CNN审查的国家安全消息人士和备忘录显示，针对加州的这份备忘录发布之际，美国情报界在过去一周内向美国企业和政府机构发出了一系列私下警告，敦促其保持警惕，并加固伊朗政权可能发动网络攻击的目标，以回应与伊朗的战争。
虽然这些简报中没有列出具体或可信的威胁，但国土安全部最近向美国执法机构发布的一份通报警告称，在伊朗最高领袖阿亚图拉·阿里·哈梅内伊遇刺后，威胁环境有所升级。
援引开源情报，国土安全部的“重大事件通报”称，“两名伊朗高级宗教领袖分别发布了波斯语的法特瓦，呼吁全球穆斯林为哈梅内伊的被杀复仇。”
通报还引用了伊朗伊斯兰革命卫队的一项法令，该法令称：“敌人……将在世界任何地方都不再有安全可言，即使在他们自己的家中。”
美国官员尚未公开宣布对美国本土存在任何已知的可信威胁，但一位熟悉情况的执法部门消息人士告诉CNN，在美国和以色列发动打击后，联邦调查局已在全国范围内提高了警戒级别，当局特别关注加强美国能源基础设施周围的安全措施，加固可能受到伊朗复杂网络攻击的政府目标，并加强边境安全。
本文已更新，补充了更多细节。
CNN的萨曼莎·沃尔登伯格对本报道有贡献。
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Gov. Gavin Newsom says no ‘imminent threat’ to California after FBI memo on possible Iran drone attacks
Updated Mar 12, 2026, 1:33 AM ET / PUBLISHED Mar 12, 2026, 12:49 AM ET / CNN Politics
By Holmes Lybrand, Josh Campbell
Updated 2 hr ago
Updated Mar 12, 2026, 1:33 AM ET
PUBLISHED Mar 12, 2026, 12:49 AM ET
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Governor Gavin Newsom speaks alongside local and state leaders during a press conference at BACS REGIS Center in Hayward, California, on March 2, 2026.
San Francisco Chronicle/Hearst/Getty Images
California Gov. Gavin Newsom said Wednesday there is no “imminent threat” to the state following reports that federal authorities had alerted state officials of unverified claims by Iranian-affiliated actors desiring to conduct potential drone attacks.
The FBI memo sent to local law enforcement and officials in California contained unvetted and unverified information for their awareness, according to several officials who had seen it.
“We recently acquired information that as of early February 2026, Iran allegedly aspired to conduct a surprise attack using unmanned aerial vehicles from an unidentified vessel off the coast of the United States Homeland,” the memo reads, “specifically against unspecified targets in California, in the event that the US conducted strikes against Iran.”
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Federal investigators often share information of questioned credibility with local law enforcement partners out of an abundance of caution.
One law enforcement source said federal and state security officials have deemed the information to be “aspirational” in nature and do not currently believe there is an imminent threat.
The US intelligence community routinely collects intelligence on adversaries signaling their desire to cause harm, one law enforcement official source said, but mere claims do not mean adversaries are capable of carrying out an attack.
These types of reports are shared with local law enforcement “daily,” the source said.
Newsom posted on social media that he is “in constant coordination with security and intelligence officials” over potential threats to California, “including those tied to the conflict in the Middle East.”
“While we are not aware of any imminent threats at this time, we remain prepared for any emergency in our state,” Newsom wrote.
President Donald Trump said later Wednesday that the government is investigating the unverified claim.
“It’s being investigated,” the president told reporters when asked about the FBI memo. “But you have a lot of things happening, and all we could do is take them as they come.”
Pressed on if he has been briefed on the potential number of Iranian sleeper cells located within the United States, the president told reporters, “I have been.”
Ramped up warnings
The memo specific to California comes as the US intelligence community has issued a flurry of private warnings in the past week to American companies and government agencies urging vigilance and the hardening of possible targets of cyber attack by the Iranian regime in response to the war with Tehran, according to national security sources and memos reviewed by CNN.
While no specific or credible threat has been outlined in those briefings, one recent Department of Homeland Security bulletin to US law enforcement agencies warned of a heightened threat environment following the killing of Iranian supreme leader Ayatollah Ali Khamenei.
Citing open source intelligence, the DHS “critical incident note” said that “two top Iranian religious leaders issued separate Farsi-language fatwas calling on Muslims worldwide to take revenge for the killing” of Ali Khamenei.
“The fatwas, Iranian government rhetoric, and online messaging from regime supporters promoting retaliation against the US heightens the threat from violent extremists who support the Iranian regime,” the DHS bulletin said.
The bulletin also referenced a decree from Iran’s Islamic Revolutionary Guards Corps, which indicated: “the enemy … will no longer have security anywhere in the world, even in their own homes.”
US officials have not publicly announced any known credible threats to the homeland, but a law enforcement source familiar with the situation told CNN the FBI went on an elevated alert status across the country following the launch of strikes by US and Israel, with authorities particularly concerned about enhancing security measures around US energy infrastructure, hardening potential government targets against cyber threats from sophisticated Iranian actors, and securing the border.
This story has been updated with additional details.
CNN’s Samantha Waldenberg contributed to this report.
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