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US-based terror ‘sleeper cells’ could be ramping up after attack on Iran: ‘On high alert’

Former ATF official cites ideological indoctrination and recent Iran strikes as reasons for legitimate concern over sleeper cells quietly residing in the U.S.

  • On Sunday, a bar shooting in Austin, Texas killed two and injured 14, prompting federal investigators and the Joint Terrorism Task Force to probe it as potential terrorism and increase threat monitoring.
  • After U.S.-Israeli strikes across Iran targeting senior officials and commanders, officials warn Iran's ideology rewards radicalized actions, raising fears of retaliatory threats following Ayatollah Ali Khamenei's death.
  • Investigators say the suspect, Ndiaga Diagne, wore a 'Property of Allah' sweatshirt, with a T-shirt bearing the Iranian flag, and officials found an Iranian flag and photos in his apartment.
  • Sen. Tom Cotton warned, `You have people who entered the United States illegally and may have a strong affiliation to Iran or a direct affiliation to Iran, and they might be here for the purpose of acting against us`, while Democrats question the DHS funding argument.
  • Germany and France issued heightened alerts, with security authorities remaining on high alert and protecting Jewish and Israeli institutions, amid fears of Iranian sleeper cells in Europe, officials said.
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The Post Millennial broke the news in Toronto, Canada on Sunday, March 1, 2026.
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