BARKSDALE AIR FORCE BASE, La. -- Airmen from the 2nd Munitions Squadron weapons load crew perform safe maintenance checks to prepare for a no-notice Nuclear Surety Inspection, Oct. 7. An NSI is designed to evaluate a unit's ability to execute nuclear operations in a safe, secure and reliable manner. (U.S. Air Force photo/Senior Airman Brittany Y. Bateman)(RELEASED)