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Iran May Have Activated ‘Sleeper Cells’ to Carry Out Attacks Around the Globe, US Officials Say

Encrypted broadcasts believed to be from Iran may activate sleeper cells as retaliation for U.S.-Israeli strikes, prompting federal alerts and increased law enforcement vigilance.

  • On March 9, 2026, U.S. law enforcement agencies intercepted an encrypted shortwave transmission likely of Iranian origin, prompting a federal alert urging heightened watch for sleeper assets.
  • Beginning Feb. 28, U.S. Cyber Command participated in operations that disrupted Iranian internet access to between 1% and 4%, following strikes and reports of Ayatollah Ali Khamenei's death.
  • Amid broadcasts, U.K. detectives from Counter Terrorism Policing London questioned four men held until March 13, with Plitsas saying, 'And as we like to say in the business, you know one time is an instance, two times a coincidence, three times is hostile enemy action.'
  • Law enforcement was ordered to increase radio-frequency monitoring as agencies maintain heightened situational awareness, while the Joint Terrorism Task Force and FBI actively pursue leads with international partners.
  • Officials warn Iran may use proxies like Hezbollah and cyberattacks to retaliate, citing past DOJ‑charged plots offering $300,000 for assassinations amid heightened alert since Operation Epic Fury began Feb. 28.
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Federal authorities have warned several police districts in the United States.

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The Trump administration intercepts an encrypted signal – presumably from Iran. Is it instructions to Iranian forces in the US?

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TALK! 100.7 FM broke the news in on Monday, March 9, 2026.
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