Posting Mil/Fed System Info
I, for one (and being in the majority) feel that the information should be posted - and here's why.
If it's this easy for us to get it, it's also that easy for the bad guys to get it and misuse it. If the administrators of these systems think that asking people not to post details (i.e. frequencies, talkgroups and such) will keep their system secure, they need to dig their heads out of the sand and pay attention. Security by obscurity doesn't work - ask any computer network or server administrator. It is NOT hard to find military or federal trunking systems - we know the spectrum in which they are located, the data channels are easy to find, and once you find it you can sit on it with programs like Trunker and it becomes almost effortless to find new talkgroups as they come into use.
The options to secure wireless communications are out there - spread spectrum, encryption on analog transmissions, encryption on digital transmissions, and so forth. The police department here in Chattanooga, TN has analog SECURENET encryption on their handhelds, and they use it from time to time. So why don't the federal and military agencies who are concerned about people hearing their radio traffic use similar technologies?
So, I say post it. Maybe it will help make these administrators realize the insecurity of their communications networks and take steps to help prevent the wrong people from learning critical information.