Everyones Ground Zero

This April 20, 2010 aerial photo shows the skyscrapers of lower Manhattan surrounding the World Trade Center site. Ground zero - depending on whom you talk to, it's a scar on this city where horror still lingers, a bustling hive symbolizing the resilience of a nation, or simply, for those who live and work nearby, a place where life goes on. (AP Photo/Mark Lennihan)