Last weekend Stephen Colbert gave the 2006 Knox College Commencement Address:

"And when you enter the workforce, you will find competition from those crossing our all-too-pourous borders. Now I know you’re all going to say, “Stephen, Stephen, immigrants built America.” Yes, but here’s the thing—it’s built now. I think it was finished in the mid-70s sometime. At this point it’s a touch-up and repair job. But thankfully Congress is acting and soon English will be the official language of America. Because if we surrender the national anthem to Spansih, the next thing you know, they’ll be translating the Bible. God wrote it in English for a reason! So it could be taught in our public schools.

So we must build walls. A wall obviously across the entire southern border. That’s the answer. That may not be enough—maybe a moat in front of it, or a fire-pit. Maybe a flaming moat, filled with fire-proof crocodiles. And we should probably wall off the northern border as well. Keep those Canadians with their socialized medicine and their skunky beer out. And because immigrants can swim, we’ll probably want to wall off the coasts as well. And while we’re at it, we need to put up a dome, in case they have catapults. And we’ll punch some holes in it so we can breathe. Breathe free. It’s time for illegal immigrants to go—right after they finish building those walls. Yes, yes, I agree with me."