On September 11, 2001, millions of Americans watched in horror as New York City’s twin World Trade Center towers collapsed. No image was longer lasting than the horrific plume of smoke and dust that spewed above the city and hung above the skyline for more than a week. “Ground Zero” quickly became a term that all Americans would recognize as the site of the giant ruin left in place of the fallen towers. As a convoy of trucks began to clean up

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