NEW YORK- New York Air National Guard Tech. Sgt. John Rodan, assigned to the 24th Civil Support Team, scans for radiological sources during a radiological material detection and identification training event at Icahn Stadium on Randalls Island N.Y. Aug. 20 2020. The 24th CST is based at Fort Hamilton and aids civilian authorities when responding to chemical biological and weapons of mass destruction events in New York City.