Rebuilding Ground Zero; Michael Arad
    Tuesday 09/13/2011
  
  
  
  
Larry Silverstein, president and C.E.O. of Silverstein Properties, and a group of executives, architects, and journalists discuss the redevelopment of One World Trade Center. Architect Michael Arad reflects on the conceptual process, visual development, and implementation of "Reflecting Absence" at the 9/11 memorial at ground zero.