The arts have had a tough time getting a foot in the door of the reconstruction effort at New York’s Ground Zero. Two cultural organizations have already been driven out of the official plans by relatives of 9/11 victims, and plans for the official memorial museum are under constant scrutiny by countless interested parties. So why would anyone want the job of designing and launching such a museum? Alice Greenwald, who took the job, says it’s all about bringing people together, and knowing that not all of them will be pleased.