In the latest chapter of a long-running legal fight over separation of church and state, a federal appeals court again ruled on Thursday that New York City school officials can ban a small Christian congregation from holding weekend services in a grade school. The 2nd U.S. Circuit Court of Appeals found that a city Department of Education policy that prohibits church services in public schools is constitutional. The policy allows religious and other community organizations to use classrooms and other facilities for after-hours programs, but denies access to those seeking to use the space as a “house of worship.” …