Port Authority Chairman David Samson, at podium center left, addresses a news conference in observation deck on the 100th floor of the One World Trade Center building, under construction in New York, Tuesday, April 2, 2013. The observation deck will occupy the tower's 100th through 102nd floors. Elevators will whisk visitors to the top in just one minute but the experience of visiting the attraction will take an hour. (AP Photo/Richard Drew)
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