TheStar Students invent system to thwart police kettling http://www.thestar.com/news/world/article/933428--students-invent-system-to-thwart-police-kettling?bn=1&sms_ss=twitter&at_xt=4d4d8584b841d9d1,0 … via @AddThis
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TheStar Students invent system to thwart police kettling http://www.thestar.com/news/world/article/933428--students-invent-system-to-thwart-police-kettling?bn=1&sms_ss=twitter&at_xt=4d4d8584b841d9d1,0 … via @AddThis