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Rainbow Bridge shut down

(updated) The Rainbow Bridge in Niagara Falls is now open, after an international emergency preparedness exercise wrapped up.
Agencies from Canada and the U.S. simulated how to deal with a number of situations that could happen on the bridge. They set off an explosion this morning to simulate a car bomb.
Actors were also used to help make the exercise seem as real as possible.
Photo: Niagara Falls Bridge Commission