Marine Lance Cpl. Luis Molina scans an Iraqi citizen's retina at Brahma Park in Fallujah, Iraq, on Jan 25, 2005. U.S. Marines are utilizing a Biometric Analysis Tracking System to record and identify Iraqi civilians entering the battle torn city of Fallujah in an attempt to find and identify insurgent forces. The tracking system uses thumbprints, a photograph of the face, and a retinal scan to establish positive identity. Molina is deployed with Marine Wing Support Squadron 373 in support of Operation Iraqi Freedom. Pic by SSG Jonathan C. Knauth, U.S. Marine Corps.