Canadian border security increased; critics say terror threat is exaggerated
By Bob Drogin
High above the rugged border, an unmanned Predator B drone equipped with night-vision cameras and cloud-piercing radar has scanned the landscape for signs of smugglers, illegal immigrants or terrorists.
Armed agents checked the identification of border crossers while radiation sensors and other devices monitored vehicles entering by road. Soon, a network of telescopic and infrared video cameras mounted atop 80-foot metal towers will rise above key locations.
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