Smirk
U.S. Air Force 1st Lt. Casey Garner, left, 7th Air Support Operations Squadron air liaison officer, smirks at the camera prior to his graduation from Ranger School Oct. 17, 2014, at Fort Benning, Ga. As an ALO, Garner works in austere environments and helps provide air support while attached to Army units. (U.S. Air Force photo by Airman 1st Class Ryan Callaghan/Released)