Just 1% of airmen reach the rank of chief master sergeant. (Airman 1st Class Bridgitte Taylor/Air Force) The Air Force announced Wednesday it has tapped more than 500 airmen for promotion to chief ...

Master Sgt. JoAnne S. Bass becomes the Air ... Bass was selected by Gen. Charles Q. Brown, the incoming Air Force chief of staff, who has made history as the first African American to head one ...