Director of National Intelligence Jay Clayton has warned Secretary of State Marco Rubio that Iran’s lethal plotting against Americans abroad has reached advanced stages amid rising regional attacks.

A declassified intelligence memo from Clayton to Rubio states that Iranian efforts to target U.S. personnel have “substantially increased,” and that lethal plotting has moved into advanced stages in the Middle East and certain other countries.

The Hill reported that the memo, dated Friday, arrived days after the State Department ordered certain nonessential U.S. personnel to leave Saudi Arabia following Iran-backed Houthi strikes on civilian sites.

Axios first reported the memo’s existence. A U.S. official later confirmed it to NewsNation, The Hill’s broadcasting partner. The warning lands as Rubio manages a tense foreign policy portfolio that has already included hard-edged moves such as sweeping U.S. sanctions on the International Criminal Court.

The core message is blunt. Iran is not merely posturing. U.S. intelligence assesses active, advanced-stage lethal plotting against American citizens and personnel.

Clayton’s memo spells out the threat in plain terms

In the memo addressed to Rubio, Clayton wrote that intelligence arrived through multiple channels.

Clayton stated:

"Specifically, through various channels, we have received intelligence that Iran has substantially increased efforts to target U.S. personnel,"

He added:

"The lethal plotting efforts by Iranians against U.S. citizens have reached advanced stages in both the Middle East and certain other countries."

Those lines leave little room for soft-pedaling. The Director of National Intelligence told the nation’s top diplomat that Iranian lethal efforts are no longer theoretical.

Fox News reported the same warning and noted the memo’s arrival alongside ordered departures of non-emergency U.S. staff and families from Saudi Arabia as regional threats were being evaluated.

The Washington Examiner’s account underscored another detail: the risk reaches beyond the limited circle of officials cleared to see the memo itself. More Americans are exposed than the small group reading the classified traffic.

The Examiner noted Clayton’s warning of rising Iranian threats and the advanced stage of lethal plotting against U.S. citizens abroad.

Saudi Arabia becomes the flashpoint for U.S. personnel moves

The State Department ordered the departure of certain nonessential U.S. personnel from Saudi Arabia. That order came days before Clayton’s memo to Rubio.

Iran-backed Houthis have ramped up attacks inside the kingdom. They have struck civilian infrastructure, including airports. Civilians have been wounded and killed.

Saudi officials said Wednesday that their military prevented another attack on the holy city of Medina. The strikes form part of the long-running war between Yemen’s Houthi rebels and the Saudi-backed Yemeni government. Saudi Arabia has been targeted in part because of its partnerships with the United States.

A State Department spokesperson told The Hill on Wednesday that the fighting can spread fast.

The spokesperson said:

"As the Department has repeatedly emphasized, the hostilities have the potential to escalate rapidly, including beyond that immediate area,"

Clayton’s memo does not mention the State Department’s evacuation of some American personnel from the Middle East. The intelligence warning and the personnel order sit side by side in the same window of days, even if the memo itself stays silent on the departures.

Rubio has shown a willingness to use the tools of state power when U.S. interests are on the line, including when he barred U.S. transactions with the International Criminal Court and vowed to dismantle it. A clear intelligence warning about advanced Iranian plots fits that same demand for resolve.

Houthi strikes and Iranian plotting travel together

The Houthis are Iran-backed. Their attacks on Saudi airports and civilian sites are not isolated banditry. They sit inside a wider campaign that already reaches countries across the Persian Gulf region.

U.S. military action involving the Islamic Republic has amplified the impact of the Yemen civil war, according to the reporting around the memo. The exact operation is not named in the available account. What is named is the result: higher pressure on U.S. personnel and partners.

When Iran “substantially” increases efforts to target Americans, and when those lethal plots reach “advanced stages,” the practical question for any administration is simple. Protect the people wearing the flag, or treat the warning as another cable to file.

The memo’s language points to the first choice. Rubio received it as Secretary of State. The State Department had already begun moving nonessential staff out of Saudi Arabia. Saudi forces were intercepting attacks on Medina. The pieces line up around one fact: the threat is active.

That same Rubio has also used visa authority as a foreign-policy lever, including when he announced visa restrictions on South African nationals over race-based discrimination and land seizures. Personnel security abroad and immigration leverage at home both turn on whether the government treats hostile actors as serious.

What the memo does not say still matters

The public record leaves open questions. The memo does not name the specific “certain other countries” where plotting has reached advanced stages. It does not list the U.S. personnel or officials targeted by name. It does not publish operational methods or a full text beyond the key sentences already released.

It also does not give a headcount for how many nonessential staff were ordered out of Saudi Arabia, or from which posts. Casualty totals from the Houthi airport and infrastructure attacks are described as civilians wounded and killed, without a full numeric tally in the core account.

Those gaps do not erase the warning. They mark the limits of what has been declassified. Clayton still told Rubio that Iranian lethal plotting is advanced. The State Department still moved people. Saudi forces still blocked an attack on Medina. The pattern is not ambiguous.

Political standing does not change the intelligence. Separate coverage has shown Rubio outperforming rivals in early 2028 matchups, but the memo is not a campaign document. It is a security document. Americans serving overseas do not get a vote on whether Iranian plots are “advanced.” They live with the answer.

Accountability runs one direction here

Iran has spent years building proxy forces, arming the Houthis, and probing for weak points against the United States and its partners. When the Director of National Intelligence puts “advanced stages” in writing to the Secretary of State, the soft option disappears.

Lawful Americans working for their government abroad are the people who absorb the cost if officials shrug. Taxpayers fund the missions those personnel carry out. Secure borders and honest alliances mean little if U.S. staff can be hunted in the field while policymakers talk past the threat.

Clayton’s memo, the State Department’s departure order, and the Houthi strikes on Saudi civilian sites form a single timeline. Iran increases targeting. Proxies hit infrastructure. The United States pulls nonessential staff. Intelligence flags lethal plots already far along.

That is not a weather report. It is a demand for hard choices: harden security for U.S. personnel, keep pressure on Iran and its proxies, and refuse the habit of treating clear warnings as background noise.

When Iran’s plots reach advanced stages, Americans abroad deserve a government that acts like it noticed.