Agents with the U.S. Immigration and Customs Enforcement raided a slaughterhouse in Tennessee, detaining nearly 100 Hispanic workers in one of the largest immigration raids in the history of the U.S. United States Immigration and Customs Enforcement: United States Immigration and Customs Enforcement (ICE) is a federal law enforcement agency under the United States Department of Homeland Security. Its stated mission is to conduct criminal investigations, enforce immigration laws, preserve national security, and protect public safety. ICE was created as part of the Homeland Security Act of 2002 following the September 11 attacks. It absorbed the prior functions of the Immigration and Naturalization Service and the United States Customs Service. April 5, 2018. Wiki link