Operation Smokescreen
The operation involved the Sheriff's Office in Iredell County , North Carolina , Federal Bureau of Investigation ( FBI ) , Bureau of Alcohol , Tobacco , Firearms and Explosives ( BATF ) , Immigration and Naturalization Service ( INS ) , and the U . S . Department of State's Diplomatic Security Service ( DSS ) . 
<triplet> Iredell County <subj> North Carolina <obj> located in the administrative territorial entity <triplet> North Carolina <subj> Iredell County <obj> contains administrative territorial entity