Read Robert Weissberg's "Bad Students, Not Bad Schools." Attacks on teachers, like this incident, are common in many inner city schools.
No, we agree in substance. Our disagreement is semantic. Part of the American education model is the notion that every single child needs to be accommodated no matter how disruptive, dangerous, vicious, stupid, indifferent or incompetent. My brother (like Micheal Savage) taught math in a junior high school in Jamaica, Queens. He too, had to deal with dangerous and disruptive students and unsupportive parents. This policy is insane.