Counterterrorism expert Jonathan Gilliam said Iranian sleeper cells might be hiding "in plain sight" as Iran has issued ...

Sleeper cells refer to spies or terrorists who typically live quiet, unsuspicious lives in the western world before acting on ...

Sleeper cells are spies or terrorists who operate in rival countries and remain inactive until they are essentially ordered ...

The U.S. strike against Iran on Saturday night has ignited fears that Iran may choose to orchestrate attacks against ...

Iran sent a communiqué to Trump in the days before last night's strikes on its nuclear facilities threatening to activate sleeper-cell terror inside the United States if it were attacked, sources said ...

DHS issued a terrorism bulletin with experts warning of Iranian sleeper cells, campus protest infiltration and online ...

While Washington obsesses over sleeper cells like they’re a new virus, the real contagion is a coordinated jihadist machine ...

Over the past four years, thousands of Iranian national have been documented entering the United States illegally and ...

The threat of sleeper cells in the U.S. has “never been higher,” though there are no current specific threats, according to U.S. Customs and Border Protection (CBP). A memo sent Saturday ...

A CBP memo suggests “the threat of sleeper cells ... has never been higher,” even as it says it has no “specific credible ...

Globalization extends the battlefields of regional wars to our own land and airspace — and Joe Biden's lax border policies worsened the danger.

According to CBS News, the FBI "increased efforts to monitor possible domestic sleeper cells linked to Hezbollah," which was ...