School libraries are often at the crux of censorship scandals because of the delicate position in which they find themselves. Not only do they have to contend with curriculum demands and limited funding, they also have to be wary of The Parent. Many of the banned and challenged books today get on the list because of librarians and teachers attempting to strike a balance between intellectual freedom and parental concern about controversial books. Do you put The Higher Power of Lucky on your shelf or do you risk the wrath of the 5th grader's parents?
This link is the School Library Journal's round-up of censorship issues.