Thirteen years ago, a small Greek Orthodox church with a ringing rooftop bell offered a reprieve from the city’s furious financial nerve center, until it was crushed when the World Trade Center’s south tower collapsed on Sept. 11. On Saturday, church officials blessed the ground where the new St. Nicholas church would rise

Thirteen years ago, a small Greek Orthodox church with a ringing rooftop bell offered a reprieve from the city’s furious financial nerve center, until it was crushed when the World…