Authorities tracked extremist activity on social networks and identified two young men.

Our spies lost a key weapon in the fight against terrorism through a law-making error.

Security expert says Clinton to be treated as a "high-risk" VIP when it comes to security.

Ten-year-old was left so traumatised he is now unable to speak.

Reports of the SIS and GCSB show how many warrants to intercept communications in force.

SIS director says the plot to blow up a plane from Sydney was uncovered by Israel.

Meet people "prepping" – a worldwide movement of steps to prepare for global catastrophe.

The country's risk assessment from money laundering and terrorism has been updated.

On a pain scale of one to 10, John Feal rates what he experiences every day "about 400".

Family drama, wedding invitations and an investigation by the FBI.

A bomb hidden in an ambulance has killed at least 17 people in the Afghan capital Kabul.

The NZDF was part of an international naval coalition that helped seize 915kg of heroin.

Army plots how to fight future wars.

A Taliban assault on the Intercontinental Hotel in Afghanistan killed at least six people.

New SAS machines replace ageing fleet that suffered badly in Afghanistan.

Every spectator will be checked by a hi-tech security system when the Ashes resume.

Does the button exist? What role do the football and biscuit play? Uncovering the truth.

Police raided five properties and arrested four men on suspicion of plotting an attack.

People ran for their lives after a terror-related explosion inside a subway station in NYC

Threats to New Zealand detailed in intelligence briefing to Andrew Little.

Major cities could be on high alert as ISIS threatens 'New Year's hell' around the world.

Review into Ariana Grande attack finds terrorist was on security service's radar.

New Isis propaganda images may have uncovered a plot to attack Europe's Christmas markets.

Egypt launches air strikes on terrorist hideouts after attack claims at least 235 lives.

Police release two photographs of men they believe started the Oxford Street stampede.

At least 235 were killed after a gun and bomb attack at an Egyptian mosque.

Ardern refused to back down on Manus Island, saying she had to do what was right.

Mass graves found in Iraqi area retaken from Islamic State group. AP

Fierce debate - Why are some attacks labelled terrorism and others not?

Exactly 25 years before the Twin Towers crumbled New York was hit by another terror attack