Manhattan on Sept. 11, 2001.
AP Photo/Daniel Hulshizer
An unprecedented onslaught from the US hasn't destroyed the terrorist organization. What is the secret of its resilience?
A woman holds a flag as she looks out over the National Sept. 11 Memorial and Museum.
Data on violent incidents in the US reveal that our focus on Islamist extremism since 9/11 may be misguided.
Democratic National Committee Chairman Tom Perez rallies with protesters outside the White House.
Research on more than 50 government investigations reveals how partisanship can get in the way of finding answers we all agree on.
Flashbulb memories of 9/11 are more vivid than ordinary memories, but no more accurate.
We may feel like flashbulb memories of dramatic events are more accurate than ordinary memories, but are they really? An experiment begun Sept. 12, 2001 sheds light.
Collective trauma: A boy walks among some of the 3,000 flags placed in memory of the lives lost in the September 11, 2001 terrorist attacks.
Even indirect exposure to the terrorist attacks of September 11 has left profound and deep impact on those too young to remember a world before that.
Aerial view of the Pentagon, September 14, 2001.
The National Incident Management System (NIMS), created after 9/11, has helped government agencies respond to large-scale emergencies, including mass shootings and the Boston Marathon bombing.
Lower Manhattan’s new skyline.
NYC skyline via www.shutterstock.com
Those involved with the monumental task faced many challenges as they balanced the unquestionable priority of remembrance with the commercial task of recreating an economically vibrant downtown.
An airboat driver rescues residents in Ascension Parish, Louisiana, where the ‘Cajun Navy’ of volunteers aided relief efforts.
Improvised rescues, such as boat owners saving people in flooded Louisiana, have become an integral part of federal and state disaster response efforts.
The reporting of terrorist atrocities is polarising opinion in a way that is dangerous for the craft of journalism.
Islamic State fighters on a tank take part in a military parade along the streets of northern Raqqa province.
Despite what we're told, religion isn't inherently peaceful. People kill in the name of their religion, just as they love in its name.
The French flag flies over flowers, candles and messages in tribute to victims outside the Le Carillon restaurant a week after a series of deadly attacks in Paris, France last November.
It is probably not a surprise that a terror attack can have a major impact on people's mental health. But what sort of effects are common, and how long do they last?
South African fans got into the World Cup spirit in more ways than one.
More male babies were born in South Africa nine months after the country hosted the 2010 World Cup. There's science behind it.
The Tribute in Light is seen on the 14th anniversary of the 9/11 attacks on the World Trade Center. 9/11 was the beginning of major changes in the intelligence community.
The tactics used by America's current and potential future enemies are constantly changing. Higher education can help by producing graduates able to work in intelligence communities.
It depends who you mean.
The new head of Oxford university says it did but while some took post-tragedy patriotism too far, others were pursuing an old agenda.
Packing up and shipping out.
Ben Birchall/PA Wire
British combat operations have now officially ended in Afghanistan with the handing over of Camp Bastion, the last British military base in the country, handed over to Afghan forces. It was fittingly symbolic…
The aftermath of the 7/7 attacks in London.
What does one billion Pounds Sterling of Olympics security get you? Rapier surface-to-air missiles in Blackheath common, the Royal Navy’s largest battleship moored in the Thames (complete with eight Lynx…
United Airlines flight 175 is crashed into the south tower of the World Trade Centre on September 11 2001.
The terrorist attacks on the United States on 11 September 2001 catapulted the world into another stage of history: the struggle between communism and capitalism, and references to the “end of history…
American public transport employs biofuels instead of petrol .
“We are fortunate to be alive at this moment in history. Never before has our nation enjoyed, at once, so much prosperity and social progress with so little internal crisis and so few external threats…
Mourners will gather on the site of the Twin Towers to remember 9/11 victims today.
Ten years ago today, on September 11th 2001, al-Qaida terrorists flew planes into the World Trade Center in New York and the Pentagon in Washington. Passengers on a fourth jet overpowered hijackers, bringing…
The father of Nael Abu Hlayel, who blew himself up in Israel in 2002, holds up pictures of his son.
Ten years ago, nineteen young Muslims commandeered passenger jets and killed themselves, taking with them 2973 people to the inferno of fire. Since the 9/11 attacks, suicide bombings have become a staple…