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

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

Chad Wolf and Tom Homan raise concerns about Iranian sleeper cells possibly entering the U.S. through the southern border ...

Rep. Brian Mast (R-FL) underscored the danger that the United States faces after its recent strikes on Iran’s nuclear forces, ...

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

A memo on Saturday from U.S. Customs and Border Protection Commissioner Rodney Scott issued the warning, The Hill reported ...

Iran sent a communiqué to Trump in the days before last night's strikes on its nuclear facilities threatening to activate ...

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

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 ...

Iran is vowing retaliation after the U.S. struck its nuclear facilities over the weekend. NBC News’ Courtney Kube reports ...

An underground network of Iranian sleeper cells poses an unlikely but credible threat to the UK, defense and security experts ...