Boo! I'm Eric Wellman. Happy Halloween. Vampires -- whether in books or film -- continue to fascinate and frighten more than a century after the creation of the world's most famous vampire Dracula. Since the 19th century the portrayal of the vampire has changed as society's fears have changed, says Benita Blessing. She's an assistant professor of Women's and Gender Studies at Ohio University... and also an expert on vampires.