I.C.E Immigration and Customs Enforcement often referred to as I.C.E is an elite agency under the branch of Homeland Security formed in 2003 in response to the attacks on 9/11. ICE has two major components, Homeland Security Investigations and Enforcement and Removal Operations. It is also the second largest law enforcement organization in the United States, second only to the FBI. ICE was created when merger of the investigative and interior enforcement elements of the U.S. Customs Service and