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Will take a while to determine if it's terror related. No explosives in the car isn't determinate, lots of terror attacks are simply cars running people down or being crashed into a building. A car approaching the border facilities at 80-100 mph is would only very rarely be inadvertent, simple reckless driving or DUI.
NY vehicle explosion at Rainbow Bridge border crossing is attempted terror attack: sources
Still no ID of who the plates traced back to?