Bone marrow donor 2 Castillo
A staff member of the Georgetown University Hospital in Washington, D.C., draws blood from Master Sgt. Michael Castillo, 22nd Logistics Readiness Squadron, Jan. 3, at the hospital. Sergeant Castillo had his blood draw prior to undergoing surgery to donate bone marrow to a 10-month-old baby. (Air Force phot by Master Sgt. Francine Bish)