SIGN LANGUAGE U.S. Army Staff Sgt. Robert Groves nails a sign in place as an Iraqi boy holds it, April 27, 2008. The sign instructs visitors to the newly opened Civil Military Operations Center on Joint Security Station Sadr City. Groves is assigned to the 4th Infantry Division's 3rd Brigade Combat Team. SHARE: Download: Full Size (0.08 MB) Credit: VIRIN: 777463-P-ZTR18-926.jpg Photo Gallery