Senior Airman Mario Lunato, 2nd System Operations Squadron (SYOS) system administrator and Airman 1st Class Caleb Childers, 2nd SYOS cyber surety technician, replace a flooring panel next to a computer room air conditioner (CRAC) in the 557th Weather Wing’s High Performance Computer Data Center at Offutt Air Force Base, Nebraska, April 27, 2018. The CRACs were replaced as part of a $4 million plan to improve the data center’s cooling capabilities. (U.S. Air Force photo by Paul Shirk)