Airman 1st Class Justin Parsons, 28th Civil Engineer Squadron heating, ventilation and air conditioning systems technician, writes his pledge to give up tobacco for one day at a Great American Smokeout information display in the base Exchange at Ellsworth Air Force Base, S.D., Nov. 15, 2012. Those who stopped by the booth learned more about tobacco cessation programs offered by the Health and Wellness Center, signed up to participate in the Cold Turkey Combat Challenge in the Pride Hangar Nov. 16, and committed to stop using tobacco products for at least one day. (U.S. Air Force photo by Airman 1st Class Hrair H. Palyan/Released)