I answered a question regarding military intercepts recently. A few days later someone posted a recording of an interception of a Bonanza in a TFR (VIP movement) in the forums at liveatc.net. Very interesting too, with both UHF and VHF (Guard) communication. Can I link to it in the question? The problems I see is that a) you need to register to download the clip, and b) I don't like linking to forums as I suppose you never know how long the thread will survive, but maybe that's just me.
Also, assuming I have permission to distribute the clip, is it possible to store it on stackexchange somehow, like with images?