Joint effort leads to agencies finding 150 missing children NASHVILLE, Tennessee (WSMV) — A joint operation between the U.S. Marshals Service, Tennessee Department of Children’s Services and the Tennessee Bureau of Investigation resulted in those agencies finding 150 missing children across the state. Planning for the effort, named Operation Volunteer Strong, began in fall 2020 with operation efforts launching on Jan. 4. After identifying 240 missing children statewide, TBI intelligence analysts compiled information and potential leads on each, which designated law enforcement teams carefully pursued during two-week blitzes in each of Tennessee’s three grand regions. U.S. Marshals said at least two of the missing children were identified as a possible human trafficking victim.