Airman 1st Class Corey Frey, 28th Communications Squadron client systems technician, removes memory from a computer tower while troubleshooting a problem at Ellsworth Air Force Base, S.D., April 4, 2012. When network or computer problems arise, client systems technicians troubleshoot and find solutions to bring systems online as quickly as possible. (U.S. Air Force photo by Airman 1st Class Kate Thornton/Released)