Over a thousand victims of the September 11 attacks are still unidentified

New methods of DNA analysis should help identify more victims of the terrorist attack on the World Trade Center 11 September 2001 of the year, reported in the main office of medical expertise in New York. The death toll in the largest terrorist attack was 2753, and the remains of more than 1000 of them have not been identified so far, keeping grieving families in woeful uncertainty.

Фото: Depositphotos

For the first time using new technologies, this year medical examiners were able to identify the remains of an 26-year-old financial officer Scott Michael Johnson, who worked on the 89-m floor of the South Tower, writes Reuters. Over the past five years, it has been identified by person per year thanks to the tireless work of investigators in the largest criminal laboratory in the world.

Previously, they repeatedly analyzed bone fragments, but they could not identify to whom they belonged. It is the fact that the experts have not abandoned the attempts that led to the identification of Johnson. His family has gained certainty and will be able to mourn his own man.

“These are all remains that we have already tried to work with,” says Mark Desire, who heads the laboratory.

Desiree and his team of scientists show the most innovative DNA analysis technique that is used on a fragment of human bone restored after the attack.

This method was called the "World Trade Center Protocol" and was also used to identify victims of train and plane crashes, terrorist attacks in Argentina, Canada, South Africa and other countries.

Moving from table to table, scientists show how to clean the bone, crush its fragment into powder, add chemicals, place the sample in an incubator, and then in a large white machine that automatically extracts any possible DNA from the damaged material.

The more crushed the bone, the greater the likelihood of DNA recovery. The innovative step involves placing the bone in a chamber containing liquid nitrogen, which makes the bone more brittle, and shaking it until it is ground into a powder.

Desiree expressed his gratitude to the chief medical expert who, in 2001, decided to save human remains in anticipation of future advances in DNA identification technology, which allowed scientists to identify victims after years and return certainty to their families.

"If we had not taken this step back in 2001, these remains would have continued to decompose, and the DNA identification we made this year likely would not have been possible," Desiree said.

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