364th Training Squadron cable and antenna systems apprentice course students, peform a ground based tower rescue at Sheppard Air Force Base, Texas, Oct. 23, 2018. Several situations like equipment failure or injury could leave the climber unable to descend the tower on their own. This method is the safest for retrieving someone from the tower because it only puts the person descending at risk. (U.S. Air Force photo by Airman 1st Class Pedro Tenorio)