In the modern world, witchcraft and witches are dismissed as fantasies, but in many cultures, magic is alive and its practitioners admired and feared. Meet an anthropologist who became a believer in Mexico and a "witch cleanser" in Zimbabwe.
Every culture's religion is taboo somewhere, but voodoo seems to be the ultimate outcast. Why? How accurate are tales of possession and black magic? Find out how little you really know about this controversial religion.