The Trump administration has warned of Iranian “sleeper cells” operating in America as the United States braces for Tehran’s ...

A recent CBP memo warns that the threat posed by Iranian sleeper cells or sympathizers inside the United States "has never ...

The Iran crisis of the past two weeks isn't just about nuclear weapons — it's also an urgent reminder that border security is national security.

Asked about concerns over possible Iranian sleeper cell attacks in the United States following his decision to bomb the ...

Former DHS chief warns of Iranian sleeper cells after U.S. strikes, calling it a “highest magnitude" threat and urging the public to stay vigilant.

U.S. Immigration and Customs Enforcement (ICE) has detained 11 Iranian nationals, one of whom was a sharpshooter in his ...

The president insists Iran’s nuclear facilities were “totally obliterated.” Not everyone is so sure.

Rep. Brian Mast is the latest to express concern over sleeper cells in the United States following its strikes against Iran.

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

At a Senate Appropriations Committee hearing on Wednesday, Sen. Lindsey Graham (R-SC) questioned AG Pam Bondi about possible ...