Staff Sgt. Randy Hudson, left, and Tech. Sgt. Craig Cannon, both from the 33rd Information Operations Squadron, get an upper body workout while volunteering March 12 at the Lackland Elementary School on Lackland Air Force Base, Texas. They were among some 20 volunteers from Security Hill who worked four-hour shifts building a habitat for the school. The habitat includes a pond and sidewalk. (USAF photo by Alan Boedeker)