Trick or Treating on Grand Forks Air Force Base, N.D., is scheduled for Oct. 31 from 6 to 8 p.m. Due to the hours of darkness, all Trick or Treaters should carry a flashlight or glow stick. Parents are encouraged stay with their children at all times and to check all candy before allowing their children to eat it. (U.S. Air Force photo by Staff Sgt. R. Michael Longoria