If this high school was like mine, it was like Disneyland at closing time between classes. It doesn't take much in the way of skills to inflict mass casualties in that environment.
Consider the Kunming Railway Station attack earlier this year. 8 attackers with kitchen and work knives left 29 dead and 140 wounded. Also, the Chenpeng Village Primary School in 2012. One attacker, 24 wounded. Same type of crowded environment as Franklin school.
I'm a little surprised at the timing in that there's normally at least 2 weeks between mass casualty events, and Ft Hood was only a week ago.
Am I being cynical assuming that this type of event is going to be "business as usual" for the foreseable future?
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Hope for the best and prepare for the worst.
The object in life is not to be on the side of the majority, but to escape finding oneself in the ranks of the insane