Weapons?

I was thinking today about how strange it is that kids here carry a little box cutter in their pencil cases. I was wondering how teachers in the US would respond to elementary or middle school kids taking out a box cutter to cut a piece paper. I was wondering if kids in the US can even have a box cutter in school. This city has 2.5 million people in it and Wednesday night I walked part of the way home from downtown at 1 in the morning by myself. As I walked that night I thought about how strange that was too. Will Korea ever "catch up" and start killing people in the streets at night? Will the city schools have to one day install metal detectors? Kids have also brought toy guns to school, completely innocent. It was like this in the States at one time, wasn't it? A toy was just a toy? These toy guns always make me do a double take, but the Korean teachers think nothing of it. It fascinates me, the normality of one culture is the "red flag" of another. It is a bit strange here. But then I remembered, kids in Micronesia brought machetes to school. I think I would be a mess in an American school or even in an American city for that matter.