Even better, watch the video of Stephen Colbert's performance. I know there are loads of places to find this now, but the place I saw it was on Salon.com. You may have to watch an advertisement, but it's worth it:
Video Dog - Salon.com
The compound is under construction. Gathering enough plywood, galvanized tin and used trailers takes time, not to mention stockpiling all the shotgun ammo, canned goods and bourbon.