Watch this documentary on iwonder. The rebuilding of ground zero is one of the most architecturally, politically, and emotionally complex urban renewal projects in American history. From the beginning, the effort has been fraught with controversy, delays and politics. At the heart of the story of how and why this historic project got built is the dramatic tension between noblest intentions, the desire of everyone involved to "get it right," and the ego that is the bedrock of New York City.