Saturday, July 21, 2007 (Mexico City) The leading exorcist of Mexico's main archdiocese said the popular Harry Potter book and film series could allow the devil to enter children's minds, and does ''a lot of damage.'' The Reverend Pedro Mendoza, a Roman Catholic priest and exorcist coordinator of the Archdiocese of Mexico City, made the comments at the end of a five-day exorcism conference in Mexico City. ''If you put all these ideas in a child's head, that he can become a wizard, the child believes that, and that is opening an avenue through which the devil can get in,''...