A former FBI agent urges President Trump to send Iran a stark warning over potential sleeper cell threats ahead of the 2026 ...

Foreign fighters and sleeper cells remain a security concern as the group tries to revive its networks after years of territorial collapse.

In recent days, a chilling warning came from one of America’s top counterterrorism experts: Iranian sleeper cells may already be embedded inside the United States—hiding in plain sight, waiting to ...

Iran may be activating sleeper cells outside of the country, according to an alert that was intercepted by the US. The encrypted communications, believed to have come from inside Iran, was sent as an ...

Many terror sleeper cells 'are hidden in Mumbai' Mumbai: Many terrorist sleeper cells are hidden in Mumbai with designs to blow up top business and political hubs in ...

The U.S. believes it “intercepted encrypted communications” from Iran that may act as an “operational trigger” for “sleeper assets” outside the country, reported ABC News on Monday. The federal ...

Fox News Senior White House correspondent Peter Doocy pressed President Donald Trump about “sleeper cells” after a rally as Trump deflected by attacking former President Joe Biden. Trump took ...