The scheme was revealed to law enforcement by an accused Iranian government asset who spent time in American prisons for ...

President Donald Trump announced his appointments to an advisory council inside the Department of Homeland Security on ...

ICE arrests four additional Iranian nationals with criminal histories amid concerns about sleeper cells following strikes on ...

The Department of Homeland Security has issued a National Terrorism Advisory System bulletin warning of increased ...

The Department of Homeland Security issued an advisory June 22 warning Americans cyber attacks are likely, and violence in ...

House Republicans advanced legislation on Tuesday laying out funding plans for the Department of Homeland Security (DHS) for ...

The U.S. Department of Homeland Security (DHS) warned over the weekend of escalating cyberattack risks by Iran-backed hacking ...

Sources told NBC News Iran sent a communication to President Trump last week, threatening to activate sleeper-cell terror ...

A new bulletin from DHS warns Americans of increased threats after U.S. strikes on Iran, and outlines what could happen next.

The Secretary of Homeland Security Kristi Noem issued a National Terrorism Advisory System regarding a heightened threat ...

Law enforcement agencies around the United States are now on high alert for potential acts of terrorism following the ...