Gotham Gazette Editor-in-Chief Gail Robinson takes a close look at the potentially thorny path from private parochial school to public charter school. She poses good questions about the fuzzy dividing lines between church and state, pointing out, for example, that public resources are already directed to parochial schools for transportation. Readers keen to keep abreast of trends in education -- or to track the gathering momentum of charter growth in the city's schools -- take note.