Airmen Invent High-Tech Alert Signage A sign at McConnell Air Force Base, Kan., Jan. 12, 2017, is part of a new high-tech alert system designed and built by Air Force Tech. Sgt. Clayton Allen and Master Sgt. Bartek Bachleda. Air Force photo by Master Sgt. Bartek Bachleda SHARE: Download: Full Size (0.43 MB) Tags: innovation, Face of Defense Credit: Master Sgt. Bartek Bachleda VIRIN: 170112-F-ZZ999-0008.JPG Photo Gallery