GRISSOM AIR RESERVE BASE, Ind., -- Chief Master Sgt. Kevin Cassidy, quality assurance superintendent for the 434th Maintenance Group, addresses family, friends, coworkers and unit members at NCO/SNCO induction ceremony. Being promoted to chief master sergeant is a special occasion as only 1% of those who enter the Air Force ever achive that rank. (U.S. Air Force photo/Tech. Sgt. Doug Hays)