You may have read about the lawsuit filed by the high-school senior in Rhode Island who wants his yearbook portrait to depict him wearing chain mail and carrying a sword. (He's a member of the Society for Creative Anachronism.) What you probably haven't read is that the decision not to publish the photo was made not by the principal's office, but by the student staff of the yearbook. Thanks to the invaluable Student Press Law Center for pointing this out.
Had this been a case of the principal overruling the student editor, I'd have sided with the editor. As it's apparently a case of the principal backing the student editor, I still side with the editor.
I can't understand why the American Civil Liberties Union is representing the chain-mailed teen. Going to court to force journalists of any age to publish or not publish anything is downright ... medieval.