New York City officials are planning to re-start sifting through rubble from the 9/11 attack to try to identify the remains of more victims.
The Office of the Chief Medical Examiner – or OCME – has formally identified more than 16-hundred of those who died in the Twin Towers attack, but there is still no trace of more than a thousand.
Some though are angry at how previous examinations have been handled.
Sally Regenhard, who lost her firefighter son said: “I personally, and the people in my organisation, would rather wait until we are guaranteed that there is a quality of excellence and that we have the procedures done in the correct way.”
The city scaled back the search for human remains after the initial cleanup. Relatives of those unidentified complained that they could not grieve properly. But others disagree with claims of incompetence.
Charles Wolf, who lost his wife Katherine on that day said: “They have pushed the envelope, they have developed new technologies for DNA testing, and so no absolutely not. Absolutely not. They have done everything they could. They’ve been wonderful friends to the families.”
The city stepped up the investigation in 2006 when remains were found in a manhole.
New York officials have collected 60 lorry loads of debris from around the Ground Zero site over the last two and a half years for this new search.