Though British officials have foiled far more terrorist plots than they’ve missed, the United Kingdom is on edge after its fifth terrorist attack this year alone.
The September 15 London train bombing that injured 30 was the UK's fifth terror attack this year. A security expert looks at why Europe has been seeing more frequent and bloodier jihadist assaults.
A makeshift memorial to the victims of the terrorist attack in Barcelona. Police killed five men August 18 believed to have been involved.
AP Photo/Manu Fernandez
With terrorists striking again in Spain and in Finland, one cannot help but ask -- again -- why people want to follow the Islamic State. Some new theories are emerging.
Abu Bakr al-Baghdadi, painted portrait.
After a major defeat in Mosul, Islamic State seems to have suffered a blow that could end its goal of establishing a cross-border caliphate in the Middle East.
Supporters of Jakarta’s former Governor Basuki ‘Ahok’ Tjahaja Purnama.
AP Photo/Dita Alangkara
An expert on Islam and democracy examines the threat to the world's largest Muslim majority country.
A bus displaying the Pak-China friendship sign, along a road in Karachi, Pakistan.
Are Chinese lives the price to pay for doing business in Pakistan?
Children used as pawns in conflict.
Child victims are used to justify the cause, while young soldiers further it.
A boy is evacuated during an attack on the Iranian parliament in central Tehran on June 7 2017.
Omid Vahabzadeh/ REUTERS
Terrorist attacks in Iran are evidence that, in the Middle East, there are far too many moving parts for US President Donald Trump's recent trip to have changed much on the ground.
An Iraqi soldier inspects a train tunnel adorned with an Islamic State group flag in Mosul, Iraq.
AP Photo/Khalid Mohammed
An expert explains that such claims are probably more calculated and careful than you'd expect.
Iraqi soldiers gather near the remains of wall panels and colossal statues of winged bulls that were destroyed by Islamic State militants in the Assyrian city of Nimrud, late last year.
Islamic State has destroyed globally-significant sites in Iraq and Syria, but not as wanton acts of destruction. Instead, they are calculated political and religious attacks.
Breathless reporting accompanies each attack, with little time spent addressing the underlying causes.
Nick Lehr/The Conversation via Google
Terrorist attacks are more than 'breaking news,' but the media aren't taking a comprehensive approach to exploring the underlying issues.
She is an independent young woman with a mind of her own.
A vigil for the victims of an attack at Manchester Arena on May 23, 2017.
A professor at Georgetown University answers three common questions about terrorism and political violence.
Tunisians demonstrate against the return of jihadists fighting for extremist groups abroad
Trying to reintegrate foreign fighters who return home shouldn't be considered the soft option. Governments in countries like Morocco and Tunisia need to respond realistically to a complex problem.
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.
Both sea ice and government data are disappearing.
U.S. Geological Survey, flickr
Activists today are racing to save climate records from the Trump administration. Secret archives were a powerful way to fight hostile political climates throughout history – from the Nazis to the Islamic State.
A scholar explains how mercy could be a simple act of opening oneself to those with opposing views.
On his way to the White House, Jan. 20, 2017.
AP Photo/Andrew Harnik
Is Trump correct in asserting that NATO has outlived its utility? Or that NATO’s members enjoy a 'free ride' on the back of the US? A political scientist examines the evidence.
Iraqi officials at the site of a suspected mass grave south of Mosul in November 2016.
When mass graves are disturbed, it makes it harder to find out the truth about what happened.
The Otsuka Museum of Art in Tokushima features a full-sized replica of the Sistine Chapel.
Increasingly sophisticated technology allows us to make close-to-perfect copies of everything from paintings to burial chambers. Can a replica bring artefacts to new audiences?
It is unclear how a Trump presidency will shape foreign policy.
Uncertainties about America’s trajectory under Trump come at a particularly awkward moment in post-Cold War history.