
Iranian sleeper cells may already be activating on U.S. soil through encoded radio signals, exposing gaping border vulnerabilities that President Trump vowed to seal but now fuel homeland terror risks.
Story Snapshot
- Federal authorities intercepted encrypted radio broadcasts, likely from Iran, signaling potential “operational triggers” for sleeper cells and lone wolves.
- Over 1,750 Iranians crossed U.S. borders illegally from 2021 to 2024, heightening fears of elite operatives blending into large diaspora communities like California’s 700,000 Iranian-Americans.
- Experts warn Iran’s IRGC proxies—Hezbollah, Hamas, even cartels—exploit protests, soft targets like the Oscars, and weak borders for asymmetric retaliation.
- The FBI is on high alert, but no specific threats have been confirmed, underscoring years of open-border policies’ deadly consequences.
Operation Epic Fury Sparks Iranian Desperation
U.S.-Israeli strikes in February, under Operation Epic Fury, killed Supreme Leader Ayatollah Ali Khamenei, over 150 schoolgirls, senior military officials, and more than 1,200 others.
Iran retaliated with barrages on U.S. bases and diplomatic sites in the region. Early March intercepts of encrypted radio transmissions, relayed across multiple countries, raised alarms as potential triggers for domestic sleeper cells.
These low-tech signals bypass internet surveillance, exploiting U.S. vulnerabilities long ignored by prior administrations.
Border Failures Enable Sleeper Threats
Border Patrol data reveals over 1,750 unlawful Iranian entries from 2021-2024, including potential IRGC elite operatives using established terror pathways.
Large Iranian-American communities, such as 700,000 in California, provide cover for Hezbollah and Hamas sympathizers.
Experts like former FBI Assistant Director Chris Swecker highlight how these vulnerabilities compound risks, with cells possibly involving non-Iranians via cartels, echoing the 2011 plot to assassinate a Saudi ambassador using Mexican gangs. Protests offer additional opportunities for lone wolves to activate.
U.S. officials have expressed mounting concern over the potential for Iranian "sleeper cells" on American soil following the interception of about 1,500 Iranian nationals at the southern border during the prior administration. https://t.co/S8NKY5H4VX
— NEWSMAX (@NEWSMAX) March 29, 2026
Federal Alerts and Expert Warnings Intensify
This month, a federal alert to law enforcement, reviewed by ABC News, flagged the transmissions as possible triggers for sleeper cells.
DHS Secretary Kristi Noem vowed to monitor and thwart threats. Ex-LAPD counterterrorism chief Horace Frank noted Iranian proxies’ desperation post-strikes.
Michael Rubin of AEI called it a “very grave threat,” citing the IRGC’s global outsourcing to Venezuela, Bolivia, and Argentina. FBI and DHS shifted to high alert, boosting urban surveillance amid ongoing U.S.-Israeli airstrikes.
Major cities like Los Angeles and New York ramped up security, with the Oscars flagged as a soft target in March 11 reports.
No activations confirmed yet, but monitoring of protests and borders continues in a precautionary posture.
America First Betrayed by War and Weak Borders
Conservatives who backed Trump’s no-new-wars pledge now grapple with this conflict’s homeland fallout, as Iranian retaliation shifts asymmetrically via proxies long embedded in U.S. networks.
Historical precedents like the 1980s Hezbollah presence and the 1994 AMIA bombing underscore the IRGC’s reach.
Short-term risks include lone wolf attacks and cyberattacks; long-term, renewed border scrutiny exposes the toll of fiscal mismanagement on security. Families in affected communities face stigma, while event security costs soar.
Prioritizing constitutional protections demands sealing borders and avoiding regime-change quagmires that drain resources from American families.
Iranian Sleeper Cell Concerns Grow After Border Intercepts https://t.co/rNoH7cm6C5
— Brad Bowman (@kurganw) March 30, 2026
Sources:
Iran’s threat on U.S. soil: Sleeper cells, lone wolves, cyberattacks
After U.S.-Israel strike kills Iranian leaders, FBI shifts to high alert at home
US intercepts encrypted message possibly linked to Iranian sleeper cells: Report
Escalating Risks of Iranian Retaliation on American Soil Following Epic Fury Campaign
Iran activating sleeper cells? Alert goes out to law enforcement
‘Very grave threat’ of Iranian sleeper cells in US, experts warn


















