Gillings: Zombie obsession and our fear of globalization

A search for "zombie fiction" on Amazon currently provides you with more than 25,000 options. Barely a week goes by without another onslaught from the living dead on our screens. We've just seen the return of one of the most successful of these, "The Walking Dead," starring Andrew Lincoln as small-town sheriff Rick Grimes. The show follows the adventures of Rick and fellow survivors as they kill lots of zombies and increasingly, other survivors, as they desperately seek safety.