With the 10th anniversary of the September 11th attacks and the opening of the 9/11 memorial just three weeks away, this time lapse video of the construction at the World Trade Center site from 2004 to 2011 puts nearly eight years of bickering and slow-going into perspective. No word on whether there will be a time-lapse video of the hours of political speechifying that may go down during the memorial ceremony.

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