Zombies. The dull-eyed, people-gobbling monsters have become the darlings of American pop culture, though certainly not for their charisma. Their flesh hangs, they'll eat their own families, and they never say anything interesting, yet our love affair with them has only intensified since they first lurched across the silver screen 80 years ago. Today, straight-faced debates rage, to the tune of some 316 million Google hits, about where exactly a zombie has to be shot in the b