IRIS SCAN A paratrooper scans the iris of a soldier using a Handheld Interagency Identity Detection Equipment, or HIIDE, system during training at the Joint Readiness Training Center on Fort Polk, La., Jan. 10, 2012. SHARE IMAGE: Download Image: Full Size (0.06 MB) Photo By: VIRIN: 125696-D-RHW10-488.jpg Photo Gallery