Concrete barriers save lives
Senior Airman Aaron Jacobson guides a five-ton T barrier into place June 27 at Sather Air Base, Iraq. The barrier sections, moved by large cranes, are part of a concrete wall being pieced together for protection against incoming rockets and mortars. Airman Jacobson is a pavement specialist with the 447th Expeditionary Civil Engineer Squadron. (U.S. Air Force photo/Tech. Sgt. Russell Wicke)