Iran’s Supreme Leader Ayatollah Ali Khamenei listens to the national anthem as Air Force officers salute during their meeting in Tehran, Iran, Feb. 7, 2025. Photo: Office of the Iranian Supreme Leader/WANA (West Asia News Agency)/Handout via REUTERS

Fears of Iranian-backed terrorism are intensifying across Western countries, with officials warning Iran could mobilize terrorist sleeper cells and proxy networks in revenge for the unprecedented US-Israeli strikes on Saturday that killed Supreme Leader Ayatollah Ali Khamenei — prompting governments to raise threat levels and bolster security for Jewish and Israeli communities abroad.

Sleeper cells are covert operatives or terrorists embedded in rival countries who remain dormant until they receive orders to act and carry out attacks.

As the war in the Middle East continues to spread and escalate, officials in Germany have warned of potential Iranian retaliation targeting Jewish and Israeli institutions nationwide, prompting several federal states to step up protections and issue alerts as threat concerns mount.

“Retaliatory measures — including the possible activation of Iranian sleeper cells in Europe — cannot be ruled out,” Marc Henrichmann, who chairs the parliamentary oversight committee of the intelligence services in Germany, told the local newspaper Süddeutsche Zeitung.

“The Iranian regime has repeatedly shown that it extends its use of terror beyond its own borders,” Henrichmann said. “Federal and state security authorities remain on the highest alert level and will adjust protective measures whenever necessary.”

Roman Poseck, the interior minister of the German state of Hesse, added to German outlet Die Welt that it should “be assumed that there will be an increase in the abstract threat situation, especially for Jewish, Israeli, and American institutions.”

Meanwhile, Felix Klein, the German government’s commissioner for combating antisemitism, warned to the Funke media group that, following the outbreak of conflict with Iran, “we must assume an increased threat to Jewish life in Germany.”

In France, Interior Minister Laurent Nuñez also issued a heightened alert, warning of potential threats and urging regional authorities to reinforce security around Jewish places of worship.

“In light of the current international situation in the Middle East, I reiterate my instructions to remain vigilant and ask you to immediately implement enhanced security measures for Jewish places of worship and religious gatherings,” Nuñez told French newspaper Le Figaro.

The United States and Israel carried out a series of strikes on military and leadership targets across Iran — including senior officials and Islamic Revolutionary Guard Corps commanders — after negotiations over Tehran’s nuclear and missile programs failed to yield results.

Shortly after reports emerged that the US–Israeli joint operation may have killed Khamenei, US President Donald Trump released a message urging Iranians to consider a future beyond the current regime and expressing guarded hope that the moment could lead to meaningful change.

The escalation came weeks after the Iranian regime killed tens of thousands of civilians in a sweeping crackdown on last month’s anti-government protests. The outbreak of fighting also followed last June’s 12-day war between Iran and Israel, which concluded after the US joined and bombed Iranian nuclear sites.

Beyond Europe, fears of Iranian retaliation are rising in the US, as counterterrorism agencies warn that additional resources are being rushed into efforts to detect and disrupt potential revenge attacks on American soil.

Although no specific credible threats have been publicly disclosed, FBI Director Kash Patel said Saturday that US counterterrorism and intelligence agencies were operating under heightened alert, with personnel “working 24/7 … to address and disrupt any potential threats” on US soil.

“While the military handles force protection overseas, the FBI remains at the forefront of deterring attacks here at home – and will continue to have our team work around the clock to protect Americans,” Patel wrote in a post on X.

Amid growing fears of possible retaliation, Secretary of Homeland Security Kristi Noem also said authorities are “in direct coordination with our federal intelligence and law enforcement partners as we continue to closely monitor and thwart any potential threats to the homeland.”

Concerns over the activation of Iran’s sleeper cells have surged even further after a deadly mass shooting in Austin, Texas involving a suspect with alleged support for the Islamist regime and a separate gun attack on the gym of an Iranian dissident in Richmond Hill, Ontario. Both incidents stoked fears of politically motivated violence linked to the broader regional crisis in the Middle East.

On Sunday, a gunman opened fire at a bar in Austin’s West Sixth Street district, killing two people and injuring 14 others before being shot and killed by police.

Authorities later reported finding a flag of the Islamic Republic and photographs of Iranian leaders inside the suspect’s apartment, deepening concerns about potential links between the attack and broader political or ideological influences.

According to the FBI and the Joint Terrorism Task Force, there were indicators that could suggest a possible terrorism link.

In Canada, hours after the announced death of Khamenei, a boxing gym run by Iranian-Canadian dissident activist Salar Gholami was struck by gunfire overnight.

Tehran’s ability to coordinate or inspire attacks on American soil has long been a concern for US law enforcement and intelligence officials — a fear that only deepened after Trump ordered the assassination of Iranian General Qasem Soleimani in 2020.

Amid the 12-day war in June, NBC News reported that Iran had privately warned the United States that it could activate sleeper cells on American soil in response to military action. While no specific plots were publicly disclosed, US authorities increased domestic security measures and intelligence monitoring in anticipation of possible attacks. Vice President JD Vance said the Trump administration was examining the possibility of an Iran-backed homeland attack “very closely.”

A pro-Hamas activist wears a keffiyeh while marching from the City University of New York to Columbia University. Photo: Eduardo Munoz via Reuters Connect

Anti-Zionist student groups across the US proclaimed solidarity with the aims of Islamism and jihad following a joint military operation between the US and Israel which killed Iranian Supreme Leader Ayatollah Ali Khamenei and dozens of other high-level regime officials on Saturday.

“Death to America,” posted a group which calls itself Columbia University Apartheid Divest (CUAD), a Students for Justice in Palestine (SJP) spinoff which serves as an umbrella group for a consortium of revolutionary organizations, some of which are formally recognized by the university. “We yearn for the end of the US settler colonial project. This should not be a controversial position.”

In other posts, the group shared an April 24 tweet in which Khamenei told pro-Hamas college students, who were in the middle of convulsing higher education institutions with illegal building occupations and antisemitic hate crimes, that they are “on the right side of history” and another which said “Iran has every right to defend itself against zionist [sic] warfare.”

A torrent of criticism followed the comments, leading Columbia University to denounce CUAD for falsely claiming to be a university entity.

“The group that calls itself ‘CUAD’ is not a recognized student group, or affiliated in any way with the university,” the institution said on the X social media platform, pointing to a July 2025 statement by former interim president Claire Shipman which formally proscribed any official correspondence or communication with CUAD. “There is no evidence that anyone currently in control of their account is a current Columbia student, staff, or faculty member. They are illegally using the Columbia name.”

Dr. Asaf Romirowsky, executive director of Scholars for Peace in the Middle East, said American officials should take CUAD’s rhetoric seriously.

“Cheering on Hamas and supporting Iran, a state sponsor of terrorism that has scores of American blood on their hands, surely warrants consequences,” he said. “We already have a great and sensible law on the books which says that while we welcome anyone who wishes to come here, attend university, and get an education, we do not permit people who openly support and advocate for terrorism. Actively supporting terrorism while calling for death to America and chanting ditties that advocate the annihilation of the world’s sole Jewish state should be a red line that warrants expulsion and deportation for those on student visas.”

CUAD is not the only group which denounced what the US dubbed “Operation Epic Fury.” On Sunday, New York University’s SJP chapter announced an anti-US demonstration to “demand an end to this criminal war that benefits no one other than US corporate interests.”

Meanwhile, DMVSJP, a network of SJP groups operating in Washington DC, Maryland, and Virginia, implored socialists and other revolutionary groups to attend a demonstration outside the White House on Monday, charging that “another US-backed war would mean death and displacement abroad and repression at home.”

The University of Chicago’s SJP chapter cheered Iran’s retaliatory strikes against US assets in Bahrain.

Some protests have kicked off already, according to social media reports, and have seen members of Yale’s SJP chapter brandishing “Death to America” signs. Prior to the demonstration, the group parroted propaganda confected by what remained of Iran’s political leadership following this weekend’s strikes, accusing the US of “killing children, including civilians.”

In the United Kingdom, the Ahlul-Bayt Islamic Society of University College London said, “This is not the end to resistance. The Shia in the west [sic] must remain aware and ready.”

Writing to The Algemeiner on Sunday, Sabrina Soffer, research fellow at the Jerusalem Center for Security and Foreign Affairs, said SJP’s statements are indicative of an ideology which contradicts itself.

“Even after the death of one of the Middle East’s most brutal butchers, they cannot offer even a scintilla of credit to Israel or the United States for confronting a regime that has terrorized its own people for decades,” Soffer said. “They brand themselves ‘anti-war’ yet refuse to recognize that the only genuinely anti-war force in this equation is the one dismantling the infrastructure of terror and repression. Israeli and American actions aimed at weakening a violent theocracy are not acts of aggression against the Iranian people — they are part of a rescue operation on behalf of a population held hostage by its rulers.”

She added, “What is truly un-progressive is the arrogance of presuming to speak for Iranians while ignoring those who have risked imprisonment and death resisting the regime from within. It is entitlement masquerading as solidarity.”

Students for Justice in Palestine’s national office has previously discussed its strategy of using the anti-Zionist student movement as a weapon for destroying the US in a now-deleted tweet that was posted to X in September 2024.

“Divestment is not an incrementalist goal. True divestment necessitates nothing short of the total collapse of the university structure and American empire itself,” the organization said. “It is not possible for imperial spoils to remain so heavily concentrated in the metropole and its high-cultural repositories without the continuous suppression of populations that resist the empire’s expansion; to divest from this is to undermine and eradicate America as we know it.”

The tweet was at the time the latest in a series of progressive revelations of SJP’s revolutionary goals and its apparent plans to amass armies of students and young people for a long campaign of subversion against US institutions, including the economy, military, and higher education. Like past anti-American movements, SJP has also been fixated on the presence and prominence of Jews in American life and the US’s alliance with Israel, the world’s only Jewish state.

On the same day the tweet was posted, CUAD distributed literature calling on students to enlist in a holy war against Israel and the US.

“This booklet is part of a coordinated and intentional effort to uphold the principles of the thawabit and the Palestinian resistance movement overall by transmitting the words of the resistance directly,” it said. “This material aims to build popular support for the Palestinian war of national liberation, a war which is waged through armed struggle.”

Other sections of the literature were explicitly Islamist, invoking the name of “Allah, the most gracious” and referring to Hamas as the “Islamic Resistance Movement.” Proclaiming, “Glory to Gaza that gave hope to the oppressed, that humiliated the ‘invincible’ Zionist army,” it said its purpose was to build an army of Muslims worldwide.

“We call upon the masses of our Arab and Islamic nations, its scholars, men, institutions, and active forces to come out in roaring crowds tomorrow,” it added, referring to an event which took place in December. “We also renew our invitation to the free people and those with living consciences around the world to continue and escalate their global public movement, rejecting the occupation’s crimes, in solidarity with our people and their just cause and legitimate struggle.”

Follow Dion J. Pierre @DionJPierre.

Heidi Case lays a decorative heart with her dog, Sophia, outside of Buford’s, a popular roadhouse-style bar which was the scene of a deadly mass shooting in Austin, Texas, US, March 2, 2026. Photo: REUTERS/Nuri Vallbona

US federal law enforcement is investigating whether Islamist extremism and loyalty to the Islamic Republic of Iran motivated a deadly mass shooting in downtown Austin, Texas, raising renewed concerns about foreign‑inspired violence on American soil.

The suspected gunman, 53‑year‑old Ndiaga Diagne, was killed by police early Sunday after opening fire on customers outside Buford’s Backyard Beer Garden on the popular Sixth Street, killing two people and wounding 14 others. From the outset, investigators said symbols tied to Iran’s theocratic regime and radical Islamist sentiment were present in the case, even as authorities stopped short of declaring a definitive motive.

Law enforcement officials said Diagne was wearing a sweatshirt that read “Property of Allah” layered over an undershirt with an Iranian flag design when he began shooting from his SUV before moving on foot with a rifle. Inside his vehicle, investigators also found a Quran, and at his home, a search uncovered an Iranian flag and photographs of Iranian regime leaders, according to federal and local officials.

The FBI has dispatched its Joint Terrorism Task Force to help determine whether the attack was inspired by extremist ideology or geopolitical events. Acting FBI Special Agent Alex Doran said there were “indicators on the subject and in his vehicle that indicate a potential nexus to terrorism,” while cautioning that it was still too early to confirm a clear motive.

Adding to the scrutiny, investigators and analysts have cited a post Diagne made on X (formerly Twitter) on April 28, 2025, in which he wrote: “THE ISLAMIC REVOLUTION IS ETERNAL AND HERE TO STAY UNTIL THE END OF TIME, you Zionist and islamophobes can be angry all you want but you can’t do a damn thing about it, no matter what [sic].”

Diagne was responding to a post from Iranian Foreign Minister Abbas Araghchi, who threatened Israel and touted Iran’s military strength.

In a separate post, the alleged shooter also repudiated Jewish investigative journalist Laura Loomer as an “Israel first whore” and told her to “move to Israel you f—king b—ch.”

The timing of the shooting has also drawn attention. It occurred just hours after the United States and Israel launched coordinated military strikes against targets inside Iran, in a campaign officials described as necessary to counter Tehran’s regional aggression. While authorities have not publicly confirmed any operational connection between those foreign actions and the shooting, some federal officials are examining whether the geopolitical climate contributed to Diagne’s actions. Some analysts have raised concern that the joint US-Israel operations might inspire an uptick in Islamist extremism and terrorism on American soil.

Diagne, a naturalized US citizen originally from Senegal, arrived in the United States in 2000 on a tourist visa, later becoming a lawful permanent resident and then a citizen in 2013. Police said he had prior encounters with authorities related to mental health issues, but was not previously known to terrorism investigators.

Texas Gov. Greg Abbott condemned the attack and ordered heightened security measures statewide, warning of threats tied to international conflict spilling into local communities. He pointed out that “sleeper cells” could become activated amid the war in Iran and commit acts of terrorism in the US. 

“You oftentimes see when there’s a war breaking out like this, where the United States may be going against a country like Iran, that you could have either sleeper [cells] or lone wolves acting,” he said.

The shooting shattered a normally lively early‑morning crowd on Sixth Street, a corridor lined with bars and restaurants popular with University of Texas students, residents, and tourists. Victims were rushed to nearby hospitals, with three initially reported in critical condition.

As the FBI and local authorities continue to comb through digital records, interviews, and forensic evidence, they have not yet publicly tied Diagne to any foreign terrorist organization, and officials stress that any conclusions about motive remain provisional.