CAMP RAPID, South Dakota -- Members of the South Dakota National Guard's 82nd Civil Support Team, rehearse critical skills and recertify during a training exercise April 22 at Camp Rapid in Rapid City, South Dakota. The exercise, facilitated by U.S. Army North's Civil Support Training Activity, is designed to test the unit's ability to respond to a chemical, biological, radiological or nuclear incident. CSTA is based out of Fort Sam Houston, Texas.