As tensions escalate between the United States and Iran, the threat of sleeper cells has “never been higher,” according to U.S. Customs and Border Protection, although no specific or credible threats ...

With Iran's proxy groups, such as Hezbollah and Hamas, largely crippled and unable to aid in any retaliation against the U.S., Iran will largely stand on its own if the country wants to stike any U.S.

Sleeper Cell, released in 2005, followed an undercover FBI agent trying to infiltrate a terrorist group - and it's streaming right now. The nail-biting series was nominated for an Emmy Award.

A former FBI special agent tells FOX News that these sleeper cells could be targeting the nation's rural areas since they're ...

DHS issued a terrorism bulletin with experts warning of Iranian sleeper cells, campus protest infiltration and online radicalization tactics after U.S. strikes on nuclear sites.

WASHINGTON (7News) — A former FBI agent warns that Iran is likely to respond to this past weekend’s bombings by the U.S. with cyber attacks, and probably already has “cyber sleeper cells ...

Sleeper cells in the U.S. have been a legitimate concern since multiple groups of terrorists used planes to fly into the World Trade Center and the Pentagon. Talk about possible sleeper cells has ...

Law enforcement agencies in the United States are intensifying their surveillance efforts amid growing concerns over potential Iranian sleeper cells operating within the country, according to CBS ...

As tensions escalate between the United States and Iran, the threat of sleeper cells has “never been higher,” according to U.S. Customs and Border Protection, although no specific or credible ...

As tensions escalate between the United States and Iran, the threat of sleeper cells has “never been higher,” according to U.S. Customs and Border Protection, although no specific or credible ...