I don't have any of the ANG freqs (I haven't been searching for them), but I have found a few of the freqs used by the training range for Hill AFB.
283.7500, 3030.0000, 316.1500, 322.0000. One band to search is 138~144 AM for the ANG.
As for encryption, I was in Washington DC, before, during, and after 9-11, and there was and still is very little encryption of MilAir comms. Almost all the comms fighter to fighter, and AWACs is in the clear. The conversations were, at times interesting. Mostly tho, boring stuff.
You can go to the DC forum and see what is being talked about. I do miss the fed/mil stuff from that area. Always something new to find.
Gary