Article Photos: Blasting at NYC subway site breaks windows

A workers measure the area of a shattered window at the Kolb Art Gallery following damage from an intentional underground explosion on the Second Avenue subway project on East 72nd on Tuesday, Aug. 21, 2012. (AP Photo/Bebeto Matthews)

A workers measure the area of a shattered window at the Kolb Art Gallery following damage from an intentional underground explosion on the Second Avenue subway project on East 72nd on Tuesday, Aug. 21, 2012. (AP Photo/Bebeto Matthews)