The lawyer for a Pennsylvania school district says it should be able to discipline a middle school student for posting a photo of her principal on a Web site portraying him as a pedophile.

The Blue Mountain School District in Schuylkill County argued before a federal appeals court in Philadelphia that the principal's career could have been damaged.

The American Civil Liberties Union argues that students enjoy free-speech rights off-campus that protect such parodies, however vulgar.

An ACLU lawyer told a three-judge panel that parents, not schools, should be monitoring the behavior of students when they're not at school.