NEW YORK - Honoring both the pain and the strength of the families of those who died at the World Trade Center on 9/11 and drawing on the pools of water that are part of the site's memorial, Pope Francis spoke about tears and quenching the world's longing for peace."The water we see flowing toward that empty pit remind us of all those lives" lost in 2001, he said. "The flowing water is also a symbol of our tears. Tears at so much devastation and ruin, past and present."