"Children were instructed to travel in pairs, more teachers were in the hallways between classes and more police were stationed at the school."
Another example of the knee-jerk, nanny state we live in. Overreaction to a threat that does not exist, while the real threat (the lying accuser) goes unpunished. If I had a kid in that school I would demand the girl be expelled. What would have happened if she accused a male student or a teacher?