“Radical Islam” continues to represent a “first-order security threat” 20 years after the 9/11 terror attacks on the United States, Tony Blair has warned.

The former prime minister urged leaders from around the world to come together to develop a common strategy to counter the menace to their societies.

In a speech to the Royal United Services Institute military think tank, he said there was a danger extremist terror groups could develop biological weapons.

“Covid-19 has taught us about deadly pathogens,” he said.

“Bio-terror possibilities may seem like the realm of science fiction; but we would be wise now to prepare for their potential use by non-state actors.”

Mr Blair, who first committed British troops to Afghanistan in 2001, said that it was clear “Radical Islam” had not declined as a force in that time.

He said its ideology, turning religion into political doctrine backed if necessary by armed struggle, inevitably brought it into conflict with open, modern culturally tolerant societies.

Likening it to revolutionary communism in the 20th century, he said that it remained the principal cause of destabilisation across the Middle East and Africa.

“In my view, Islamism, both the ideology and the violence, is a first order security threat; and, unchecked, it will come to us, even if centred far from us, as 9/11 demonstrated,” he said.

“Like revolutionary communism, it operates in many different arenas and dimensions; and like it, its defeat will come ultimately through confronting both the violence and the ideology, by a combination of hard and soft power.”

He said while initial efforts to counter the threat would inevitably centre on Western nations, it was important to bring in Russia and China as well Muslim countries which opposed the extremists.

Mr Blair said it represented a particular challenge to European nations given that it was now clear following the withdrawal from Afghanistan that the US had “a very limited appetite for military engagement”.

He said: “Europe is already facing the fallout from Libya, Syria and elsewhere in the Middle East.

“And for these purposes Britain is part of Europe, like it or not.”

Mr Blair said that a strategy based on responding to direct terrorist attacks through drone strikes and special forces had “limitations”.

While he said there would always be a need for “boots on the ground”, Western nations had become “deeply adverse” to casualties among their own armed forces.

“This is not a problem of the armed forces themselves, who are brave and extraordinary people.

“But it is now an overwhelming political constraint to any commitment to Western boots on the ground, except for special forces,” he said.

“Yet the problem this gives rise to, is obvious: if the enemy we’re fighting knows that the more casualties they inflict, the more our political will erodes, then the incentive structure is plain.”

NEW YORK: A breakthrough in DNA analysis is helping identify more victims of the Sept. 11, 2001, attacks in New York, but the scientific advance is of little consolation for families of those whose remains may have been buried in a Staten Island landfill.

The official death toll in the attacks on lower Manhattan’s World Trade Centre is 2,753, including the missing and presumed dead. Only 1,642 of them, or about 60 percent, have been positively identified.

The New York City Medical Examiner’s Office has worked for 17 years to identify the remaining 1,100 victims. Using advances in DNA extraction techniques over the past five years, it has made five more identifications.

The advances have been bittersweet for 9/11 families who unsuccessfully fought to stop the city from making a park out of Staten Island’s enormous Fresh Kills landfill, where 1.8 million tons of Twin Towers debris was dumped and buried.

“We are grateful that the identification continues, but there is more material that could have been part of that had the city not been so cavalier with us,” said Diane Horning, who led a failed court battle by a group called World Trade Centre Families for Proper Burial that hoped block the park project.

Horning led the group, although her son Matthew was one of those identified early on. Matthew, 26, a database administrator for an insurance company, was working the 95th floor of the North Tower when the planes hit.

New York’s Second Circuit Court of Appeals found in 2009 that accusations that the city had mishandled the remains at Fresh Kills amounted to “lack of due care,” which was not sufficient to successfully sue the city.

New York officials said at the time that the city did not intend to be insensitive or offend victims’ families.

To create the park, Fresh Kills Landfill was covered with layers of soil and other materials to prevent the release of toxic gas from decomposing trash into the atmosphere, according to the Freshkills Park Alliance, New York City’s nonprofit partner in developing the park.

Charles Wolf lost his wife Katherine on September 11 and her remains have not been identified.

If they are in the sealed landfill, he considers it “God’s will” and he is “at peace” with it.

“What’s the remedy? Dig everything up and risk exposing all those toxins again to the environment?, Wolf said. “No, that’s not the answer, because all of a sudden now the cure is worse than the disease.”

SCIENTIFIC BREAKTHROUGH

The ability to identify more victims is the latest chapter in a saga of pain that began on the morning of Sept. 11, 2001, when two airliners crashed into the Twin Towers of the World Trade Centre.

Destruction of the Twin Towers was part of the coordinated hijackings of four airliners by al-Qaeda militants that killed nearly 3,000 people in New York, Washington and western Pennsylvania, where one of the planes crashed in a farm field. The attacks triggered an escalation of U.S. military involvement in the Middle East that persists to this day.

A scientific breakthrough in the extraction of genetic material was made this year and announced by the New York City chief medical examiner last week, as the 17th anniversary of the attacks approached.

The new technique places bone fragments in a chamber containing liquid nitrogen to make them more fragile so they can be pulverized into fine powder. The more a bone is pulverized, the more likely it becomes to extract DNA.

It is the latest effort in the largest forensic investigation in U.S. history, involving a medical examiner’s team of 10 scientists working on remains once thought too degraded from jet fuel, heat and other conditions to undergo testing.

“We’re going back to the same remains that we’ve tried five, 10, 15 times,” Mark Desire, who heads the Medical Examiner’s crime lab, said in the briefing last week.

“We are making DNA profiles from remains we had no hopes of identifying in the past,” he added.

Wolf, who was not among those who opposed the Freshkills Park project, was gratified by the renewed effort.

“It warms my heart that possibly there will be remains found for people who still want them,” he said.

“I’ve gone through a lot of trauma with nothing to grieve over,” Wolf said, choking up in a telephone interview. “I remember watching Nancy Reagan touch her husband’s casket. I miss not having that.”