Workers excavating at the World Trade Center site have unearthed the 32-foot-long hull of a ship likely buried in the 18th century. Archeologists say the vessel probably was used along with other debris to fill in land to extend lower Manhattan into the Hudson River. Archeologists Molly McDonald and A. Michael Pappalardo were at the site of the Sept. 11 attacks on Tuesday morning when workers uncovered the artifacts. They call the find significant but say more study is needed to determine the age of the ship. The two archeologists work for AKRF, a firm hired to document artifacts discovered...