Many of the verses attributed to her were not in the original version of her prophecies, which were published a century after her death, but were added sometime in the 19th century. In this way, it's almost impossible to ascertain which are "true prophecies", since it's easy to talk in prophetic language of things that have already happened! In many ways, she's tailor-made for believability in a certain kind of progressive mind-set: persecuted as a witch (victim chic, with Neo-Pagan elements), a woman (feminist), and strongly antitechnological (Green Party support). Personally, I'm inclined to believe that the 19th century verses are the "true" ones: there was a good deal of Green-like thought in the Romantic period, which also hatched most of the ideas we now ascribe to witches. My opinion only...