evidence: Two more victims of the 9/11 terrorist attacks at the World Trade Center have been identified in New York City — just days before the nation marks the 20th anniversary of the tragedy. Dorothy Morgan of Hempstead, N.Y., is the 1,646th victim to be identified through ongoing DNA analysis of unidentified remains recovered from the World Trade Center site, where 2,753 lives were lost. The second person — and the 1,647th victim — is a man whose name is being withheld at his family's request. [...] "Twenty years ago, we made a promise to the families of World Trade Center victims to do whatever it takes for as long as it takes to identify their loved ones, and with these two new identifications, we continue to fulfill that sacred obligation," said Dr. Barbara A. Sampson, chief medical examiner of the city of New York.