Wikipedia Presidential Debate Jokesters

While casually enjoying the third presidential debate between Barrack Obama and John McCain in the company of my roomates, the term 'litmus test' came up at least 3 or 4 times. Enough times for me to realize, I really had no idea what that jargon means in political discussion. So where to but the first hit on google for concise and complete informational tidbits but, Wikipedia. But when I got there, the first sentence read a little different than it should have, and I took a screenshot.
Everyone be cruising the net on their laps during TV time these days, especially the web 2.0 practical jokesters. Well played guys, well played.