I get a huge kick out of the bumper music that the conservative talkradio machine uses. One of my favorites is the use of Rage Against the Machine's "Freedom" - a song written about imprisoned native american Leonard Peltier.
I know the use of the songs isn't always in the hands of the artists but it would be great if some artists spoke out against the use of their art in such a manner... hearing Zach de la Rocha shriek freedom while a talk show caller rants about how much of a patriot Sean Hannity is during a commercial... just nauseating.