"I don't think that it's appropriate to build this way again, " said Peter Gadiel, whose 23-year-old son, a worker at the World Trade Center, was one of the victims.

BBC: WTC plans fail to impress

Nicholas Church, a modest 170-year-old building that had stood next to the World Trade Center and was destroyed when the towers fell.

CNN: First families begin filing death certificates

Mr. Silverstein, 81 years old, has been a fixture at the World Trade Center site since weeks before the towers were attacked on Sept. 11, 2001.

WSJ: New Hitch in Ground Zero Plans: No Takers

The newest wave of troops hitting the Afghan battlefields are 19 or 20 years old, meaning they were roughly between 8 and 10 when al Qaeda crashed planes into the World Trade Center, Pentagon and a Pennsylvania field.

WSJ: When the Troops Were Very Young