Low-tech threats have been the biggest concern of late, but the Manchester bombing reminds us of a host of security concerns.
The U.S. is considering expanding a ban it imposed in March on several Middle Eastern countries to all flights from Europe. A close look suggests the meager benefits just aren't worth the high costs.
If it were a film, viewers would say it's too far-fetched to be believable.
From the Islamic State to North Caucasian rebels and far-right nationalists, Russia is facing overlapping extremist threats.
Last night's terrorist attack in Manchester reveals the challenges facing European intelligence and security services in preventing people who use everyday things like cars to cause mayhem.
Hyperbolic approaches to threat measurement don’t lead to very effective counter-terrorism policy.
In recent years, anti-terrorism defences have become more subtle. That might be about to change.
The UK has yet to properly grapple with its past complicity in prisoner abuses and torture.
For the first time, parliament plans to ban a right-wing extremist group, called National Action.
These days, we aren't often told when a terrorist plot is foiled, but Brits still set off fireworks to remember the one they do know about.
When parliament returns later this month, Labor's Anne Aly will become the first Muslim woman to take a seat in the lower house.
Treating 'illegal cultural practices' as a form of terrorism could lead to more marginalisation.
After years of promises, the government still has not detailed how a bill to tackle extremism would work.
France has been in a state of emergency since November 2015, and yet a man was still able to plough a truck through a huge Bastille Day crowd.
Governments need to build trust, especially during a time of heightened tensions around the threat of international terror attacks.
The government has had to make many u-turns of late and that's unlikely to change now.
Terrorist attacks that are locally sourced and financed are very hard to detect.
Scholars specializing in extremism are beginning to unravel how people -- including a higher number of Americans than one might expect -- become radicalized to embrace political violence.
Apple says it won't comply with a court order to unlock a terrorism suspect's iPhone for the FBI. Here's the technology at play.
Apple is pushing back against the FBI's order to decrypt the iPhone of San Bernardino gunman Syed Rizwan Farook for the sake of privacy and security.