The Facts Machine is fact checking the speakers at Jon Stewart and Stephen Colbert's Rally to Restore Sanity And/Or Fear.

2:37 p.m. - I could spend all day fact checking all the cable talking heads from Colbert's two fear-based video montages.

2:32 p.m. - Judging from the reaction on Twitter, Trekkies approve of Stewart and Colbert's Corbomite reference. No one is disputing their accuracy.

2:25 p.m. - Those are two accurate quotes from FDR/Nixon from Stewart and Colbert. FDR actually died of a stroke, though.

2:33 p.m. - "Every point must have a counterpoint," Colbert says as Stewart tries to start his keynote address. "That's physics." Or bad journalism.

2:14 p.m. - Stewart calls Kid Rock talented. A significant portion of the American public would disagree.

2:05 p.m. - Mick Foley gets a medal! "For exemplifying sanity and reason everywhere but in his day job."

1:54 p.m. - TBD's Sarah Larimer presents SHOCKING photographic evidence that rally attendees aren't listening to Stewart's instructions to clean up.

1:42 p.m. - Stewart presents "Medal of Reasonableness." This is directly mocking Glenn Beck's "Purple Hearts." He's even giving one to a baseball player, Armando Galaraga. (Beck gave one to Albert Pujols.)

1:39 p.m. - Stewart knows a lot about journalism. There are only two options for covering this event: rally is tremendous success, or rally is utter failure.

1:30 p.m. - In terms of keeping this rally non-political, Yusuf (or Cat Stevens) isn't necessarily the best person to bring on. For a variety of reasons, Yusuf is reviled by conservatives. The Weekly Standard once headlined a story "Is Cat Stevens a Terrorist?" This is all you need to read from that story to know what the American Right thinks of him:

Is the singer a terrorist himself? Probably not. Is he an active sympathizer of terrorist groups? Perhaps not as much as he was in the past.

Yusuf, for his part, has condemned acts of terrorism in the past, including the events of Sept. 11. Whether Yusuf deserves to be controversial or not is beyond the point if Stewart was trying to keep the rally non-political.

1:20 p.m. - Is Sam Waterston really the most reasonable man in America? Any arguments against? I don't hear any. He is.

1:03 p.m. - There are not 10 million people there. Also, demographics don't match up to the U.S. (Crowd is mainly white, according to tweets.) I am a "naysayer casting doubt," in Stewart's words.

12:55 p.m. - The Rally begins in unearnest. Jon Stewart is now speaking.

12:41 p.m. - The 3-2-1 countdown visual didn't match up with the speaker. Tsk, Tsk.

12:39 p.m. - The non-musical portion of the rally begins. Do I dare fact check the Mythbusters?