Associated Press
Workers prepare to secure damage following an intentional underground explosion on the Second Avenue subway project on East 72nd on Tuesday, Aug. 21, 2012. Blasting at the construction site shattered windows and sent smoke billowing up to the street. Metropolitan Transportation Authority spokeswoman Marjorie Anders says something went wrong Tuesday as contractors were blasting a tunnel for the Second Avenue subway. She says no one was injured. (AP Photo/Bebeto Matthews)

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