nowdays cctv is used widely. road, buildings, parking lots even kindergarten has cctv. they use cctv due to their lots of advantages. first cctv could prevent lots of crimes like sexual assault, theif, etc.
someone who consider crime he or she will see the cctv then they will keep aloof ones.
second we can find the attaker if they do even the cctv exist. maybe not all the time but almost case it is much helpful. and in struggle, we can also reveal that who did fault first. and maybe it assist alot for study of crime as materials. and if use cctv in kindergarten, parents could know their children attend the class or not and they can see their lovely childrens anytime they want if they has computer which could use internet. and they can also observe their children got good teaching or not.
invasion of privacy problem is the only things that insist to stop using cctv despite a lots of advantages.
of course personal privacy is very important but i think safety is much more important. so we have to bear personal privacy problem to keep safety of our life
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