Wonkette's Ken Layne in 2001 famously declared that bloggers "can fact-check your ass." One wonders whether he ever realized just how frenetic that real-time fact-checking would get. Bloggers and micro-bloggers on Twitter spent the evening sifting through the fibs and exaggerations that the presidential candidates put forth during their televised town hall meeting with voters Tuesday evening in Nashville, Tennessee. Both the Annenberg Public Policy Center's Factcheck.org and National Publi ...