How do you create a place of remembrance in the heart of a bustling city? Michael Arad was a young, unknown architect when he beat out 5,200 others to win a competition to design the National 9/11 Memorial at the World Trade Center. He talks about what inspired him, changes he was forced to make to his design, the opening of the Memorial on the 10th anniversary of 9/11, and his thoughts on a national memorial to the victims of Covid-19. Silverstein Properties long-time head of operations Bill Dacunto talks about surviving the 9/11 attacks.