Volunteers sign in during a blood drive dedicated to the memory of Senior Airman John E. King II at the Joint Base Andrews Theater on March 22, 2013. Members of the Armed Services Blood Program collected the donations at the drive. The ASBP is a joint operation among the military services and many components work together to collect, process, store, distribute and transfuse blood. (U.S. Air Force photo/Airman 1st Class Nesha Humes)