U.S. Army 2nd Lt. Zaidi builds a drinking water filtration system. U.S. Army 2nd Lt. Zaidi, assigned to Charlie Troop, 1st Platoon, 150th Cavalry Regiment, builds a drinking water filtration system for an Iraqi family inside their home near Radwaniyah, Iraq, on Oct. 24, 2009. Many homes were given the water filters to help improve their drinking water. SHARE: Download: Full Size (0.1 MB) Credit: VIRIN: 708451-E-GJV95-996.jpg Photo Gallery