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

The Department of Homeland Security issued a terrorism alert regarding the possibility of retaliation attacks by Iran after ...

Eight men deported from the United States in May and held under guard for weeks at an American military base in the African ...

After U.S. airstrikes on Iran’s nuclear sites, Missouri Gov. Mike Kehoe said Homeland Security warned of potential cyber and ...

Costs are mounting for the U.S. defense industry, critical infrastructure, and relations with partners and allies.

WASHINGTON (TNND) — Homeland Security is warning about a rising threat: secret terror cells that are already inside America.

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

Secretary Kristi Noem and the Department of Homeland Security announced $94 million in federal grants to over 500 ...

Mexican boxer Julio Cesar Chavez Jr. has been arrested by US immigration officers and is being processed for deportation from ...