Like Munchkin said, TKAM is on there because of the N-bombs. The idiots banning it probably think they're doing the black folk a favor or something.
I remember certain books in the jr high library being "8th grade & up only!" or "9th grade only!" Go Ask Alice and Are You In The House Alone are two that come to mind.
And I thought they didn't get busy in the Twilight series until after they were married. WTF? How is that "sexually explicit"?