Yes military members go through annual training on OpSec and Information Assurance. That being said I remember several times of mail clerks giving letters back to Devil Dogs with blacked out lines through information that was not supposed to be sent through mail carriers. We all the know the reasons for being careful, it is just some forget how important it is to keep confidential information to themselves. I think this article is right on and a good read for a refresher. Thank you!
I really honestly thought that only happened in movies. Well Good to know anyways now.