The concept is: Loose lips sink ships!
In other words, if you THINK you know something that MIGHT help the enemy, SAY NOTHING about it to ANYONE.
Keep your mouth SHUT!
You cannot know who is listening to (reading) what you say (type).
The less those who know anything say/type, the less information is available to our foes.
IOW, shaddup and listen. You might hear something, but do you want to be the reason ISIS knew about a new strategy, just because of your speculations?
Yes, really.
See post #25.