The nose knows Published April 29, 2016 By Christopher Ball 412th Test Wing Public Affairs EDWARDS AIR FORCE BASE -- Senior Airman Grace Daniels, a dog handler with the 412th Security Forces squadron, runs Military Working Dog Rolf through his paces during a training sweep in building 1405 here Thursday. Rolf is a 7-year-old German shepherd, and the only remaining working dog on Edwards who has been deployed to Afghanistan.