Who should control the space where a tragedy occurs? From what becomes of human remains to what an onsite memorial should look like, resolving this question often pits the family members of victims against the might of local and federal governments. Nowhere is this more clearly demonstrated than in the footprint of what was the World Trade Center before it was destroyed on September 11, 2001, the area commonly referred to as Ground Zero. In this installment of “Leonard Lopate at Large” on WBAI, Jay Aronson, author of "Who Owns the Dead? The Science and Politics of Death at Ground Zero" and Sally Regenhard, mother of firefighter Christian Regenhard who was killed on 9/11, discuss this complicated and often heartbreaking issue.