More on gun free zones

An op-ed on the Red Lake High School in Minnesota notes:

This is yet another shooting in another place ignorantly perceived as safe because of signs and policies that prohibit weapons. Yet these places take little, if any, affirmative action to ensure safety, let alone allowing for lawful self-defense. They pay lip service to security procedures and personnel and place "feel good" signs restricting weapons.
    These "victim disarmament zones" are actually worse than doing nothing as they take the attention off the real problems. They further a sense of complacency with respect to security. Ignorantly we assume a sign stating "No Guns Allowed" will protect us. . . .
    Utah, as one of few states that allow concealed carry in schools, is watched carefully as a "laboratory" of sorts for concealed carry in these environments. Concealed weapons have been allowed in schools since 1995 that has been recently re-enforced with legislation. We have also resisted efforts that would have mitigated lawful self-defense in schools and churches.