Senior Airman John Nelson, 436th Civil Engineer Squadron, adjusts the blast protective helmet worn by John Yoho, 436th Operations Support Squadron honorary commander, during a tour March 27, 2013, Dover Air Force Base, Del. Yoho volunteered to don the entire blast protective 'bomb suit' to gain an understanding of the conditions Explosive Ordnance Disposal personnel face when working. (U.S. Air Force photo/Greg L. Davis)