I don't know how much play this got on mainstream media, but it was on CNN at least once.
In the middle of Rumsfeld's testimony before the Senate Armed Services Committee today, a group of protesters let rip a pretty damn good chorus of "Fire Rumsfeld!" for about a minute before the cops ushered them out. Click here to see some quick video of the protesters from CNN's broadcast. (It's a 1.6 MB MPEG so give it time to download.)
