Motorcycle riders wait in line July 1, 2015 in the parking lot of the Base Exchange at Dyess Air Force Base, Texas. Participants in the Dyess Motorcycle Safety Rodeo each waited for the opportunity to ride through a track set up by the Abilene Police Department and international motorcycle group the Green Knights. The course allowed riders to test safe handling techniques. (U.S. Air Force photo by Senior Airman Alexander Guerrero/Released)