U.S. Air Force Master Sgt. Brian Potvin, Headquarters Air Combat Command Common Data Link Systems deputy chief, writes a monthly newsletter called Judgment, Experience, Training Fuel, or J.E.T. Fuel for all Airmen as a way for mentoring at Joint base Langley-Eustis, Va. Potvin started writing J.E.T. Fuel in March 2014 and has had 15 issues since then. (U.S. Air Force photo by Senior Airman Breonna Veal)