Radical Rap is a radio show on KMUD radio that runs the 2nd Wednesday of the month (most months). You can listen live at: http://kmud.org/programs-mainmenu-11/listen-live-kmud
Here is a link to download and hear Radical Rap from Nov. 14, 2012: https://www.box.com/s/m6qi2q41bt3xf9g3fh75