Here is the story (found via the invaluable Metafilter):
Sharon Cook, 57, above left, and Barbara Boisvert, 62, above right, basically colluded to keep the book out of circulation — Cook, who had become disturbed by the book’s imagery, checked it out for a year, meaning no one else could check it out. However, when an 11-year-old girl put it on hold, Cook was unable to continue her delaying tactic — and Boisvert stepped in, removing the hold, and keeping the book out of circulation.
Both were fired for their actions.
Yeah, don't let the door hit you on the way out. I love a happy ending.
I was also relieved to read a correction at the top that stated these two were not librarians, but rather "library workers", which makes more sense. Not that there aren't librarians that would pull this kind of crap, but no librarian with any sense of self-respect or duty would.