Karl Johnson, 20th Security Forces Squadron trainer, demonstrates answering the phone at Shaw Air Force Base, S.C., Jan. 18, 2017. Johnson explained proper operational security techniques for speaking on the telephone during an OPSEC brief. In the classroom, the Airmen also went over identification procedures as well as each of the less-lethal weapons used by the 20th SFS. (U.S. Air Force photo by Airman 1st Class Destinee Sweeney)
CAMERA
N/A
LENS
APERTURE
SHUTTERSPEED
ISO
No camera details available.
This photograph is considered public domain and has been cleared for release. If you would like to republish please give the photographer appropriate credit. Further, any commercial or non-commercial use of this photograph or any other DoD image must be made in compliance with guidance found at https://www.dimoc.mil/resources/limitations, which pertains to intellectual property restrictions (e.g., copyright and trademark, including the use of official emblems, insignia, names and slogans), warnings regarding use of images of identifiable personnel, appearance of endorsement, and related matters.