When McDonald's adds a new burger to its permanent menu, our nation perks its nose because it doesn't happen often. So to call its "Angus Third Pounders" -- introduced nationwide Thursday -- the "Chinese Democracy" of cheeseburgers may verge on hyperbole, but it has been eight years since we've seen a new beef burger beneath the Golden Arches (the last being the Big N' Tasty in 2001).