With rumors and speculations of The Big Four; Anthrax, Slayer, Metallica, and Megadeth, floating around the Internet, and the music world, it seems highly possible that it could happen in 2011. Members of Anthrax, Megadeth, and Slayer have all made it known that they would all be down for it, along with their band managers. And Lars Ulrich showing up at a Megadeth concert only gives thrash metal fans more hope. So if the Big Four decides to do a North American tour, would you attend? How far would you travel?