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.
Michael Flynn’s departure has left the White House under a cloud.
EPA/Jim Lo Scalzo
Losing a national security adviser is one thing – weeks and months of slow-drip crises is quite another.
U.S. President Donald Trump speaks by phone with Russia’s President Vladimir Putin.
Research on more than 50 government investigations reveals how partisanship can get in the way of finding answers we all agree on.
Canadian Prime Minister Justin Trudeau is greeted by U.S. President Donald Trump.
Can Canada manage to keep up trade while also meeting US expectations for a safe border?
Donald Trump is famously attached to his phone.
AP Photo/Matt Rourke
The best way to protect a presidential device is to keep it off the internet altogether. If that's not going to happen, how else can such a sensitive gadget be kept safe?
Trump shows off the executive order withdrawing the U.S. from the TPP.
Ron Sachs/Pool via CNP/MediaPunch/IPX
Trump formally pulled out of the Trans-Pacific Partnership and signaled his intention to begin renegotiating NAFTA. Here's some context.
Today’s violent extremists can draw inspiration from material online and through media coverage of sensational acts of violence.
We have become used to hearing stories of 'increased chatter' and 'high alerts' when it comes to terrorism. Doesn’t that mean intelligence agencies should know enough to prevent attacks?
TPP’s death may make patrolling the South China Sea more dangerous.
The main arguments in favor of the TPP were economic. But there's another reason the Trump administration should rethink its promise to nix it: Its demise will weaken US national security.
Previously presumed dead, Australian citizen Neil Prakash was arrested at the Turkish border in late November.
The extradition process for Australian citizen Neil Prakash could be prolonged, as Turkey and other countries may want to interrogate him or seek his extradition.
For allies of the United States, the reality of a Donald Trump presidency has just begun to sink in.
Many Australians fear a terrorist attack like that in Nice, France, earlier this year.
Many Australians are frightened by the prospect of terrorism on home soil, but statistics show they don't have much to fear.
It’s all fun until someone gets hacked.
Prime Minister Malcolm Turnbull and senior ministers have been criticised over their use of WhatsApp, which can leave users vulnerable if their phones are hacked, attacked by malware, or simply stolen.
The guided missile destroyer USS Barry deploys to sea from Naval Station Norfolk ahead of Hurricane Sandy in 2012.
Politicians are still debating whether climate change is real, but military planners call it a serious threat. A retired rear admiral explains how climate change affects U.S. national security.
An intelligence review should include not just policy considerations, but open public debate.
The federal government's review of intelligence agencies is important not just for our understanding of their function, but also for a more open public debate about spying and security.
Australian Human Rights Commission president Gillian Triggs has warned against laws that violate freedom.
While the debate around Section 18C has raged, a host of other laws that impinge on freedom of speech have been quietly introduced.
Islamic State today is in increasingly dire straits on the ground in Iraq and Syria.
Islamic State's call to arms against Australian targets may appear concerning in it its specificity. But it does little to change the underlying security realities the group and its supporters face.
ASIO head Duncan Lewis has called for change to the way it issues questioning and detention warrants for terror suspects.
What are ASIO’s powers in detaining and questioning terror suspects? Does it need more to be effective?
Malcolm Turnbull has painted a grim picture about the dangers of terrorism.
The rules of engagement for Australian forces fighting Islamic State will be widened, with a proposed change in the law giving them legal power to target all parts of the armed organisation.
When parliament returns later this month, Labor's Anne Aly will become the first Muslim woman to take a seat in the lower house.
Nice attacker Mohamed Lahouaiej Bouhlel exemplifies how quickly ideology can be adopted.
Most cults build upon or modify existing religious doctrine, yet how they express these beliefs varies from group to group.