I changed it back. FC is the name of the group the Unabomber called himself, it is devoted to the destruction of the technological-industrial system.
Anyway, I found the clip at http://www.soundamerica.com/sounds/cartoons/South_Park/Summer_Sucks/ after searching on google for "208_thousandisland.wav". They seem to have every sound as Beef-Cake with the same filenames.
"In order to get our message before the public with some chance of making a lasting impression, we've had to kill people." -- The Unabomber Manifesto