A Sydney man arrested on terrorism-related charges will spend Christmas behind bars.

Bright yellow sunflowers have been laid on the white coffin of Sydney cafe siege victim Tori Johnson at his funeral in Sydney.

A court has been told of fears the Sydney siege gunman could continue to influence his partner's extremist views from beyond the grave.

The wife of the gunman killed during the Lindt cafe siege could be taken into custody if her bail is revoked in a Sydney court.

Just days before the Lindt Café Siege, an anonymous caller rang authorities to alert them to gunman Man Haron Monis' website.

Three days after Pakistan suffered its worst ever terrorist attack, with the massacre of 132 schoolchildren in Peshawar, the country has hit back.

It was 2am on Tuesday. They had been under his reign of terror for 16 hours and it was now, or never.

In five words, Ken Johnson - father of Sydney cafe siege victim Tori Johnson - summed up the emotion surrounding this week's Martin Place tragedy.

How many Pakistani children have to be slaughtered to stop a cricket match? We don't know, but it's more than 132, writes Paul Thomas.

Horrifying pictures have emerged showing the Taliban gun squad who slaughtered 132 innocent children - as a new threat to kill schoolkids was revealed.

As Australia reels from the Sydney siege and its unhappy end, many will be wondering what can be done for the hostages stuck for hours with the gunman in the Lindt cafe.

The first lesson of the day for 10-year-old Irfan Shah at Peshawar's Army Public School was social studies.

A Taliban attack on a school in Pakistan that killed 132 children has been widely condemned as un-Muslim, abhorrent, inhumane and disgusting.

Amid the sea of flowers and mourners at Sydney's Martin Place, siege survivor Harriette Denny set up her own tribute for her slain boss, Tori Johnson.

The frontier city of Peshawar was once known as "the city of flowers".

The "fake sheik" behind the deadly Sydney cafe siege railed against Australian "terrorism" on his website a day before he took 17 people hostage.

Government MP Mark Mitchell argues that the Sydney hostage drama is 100 per cent justification for the anti-terrorist legislation he helped bulldoze through Parliament last week.

There was Bali, but it was Westerners - not Australians, specifically - who were targeted.

The killing of hostages in Sydney has not deterred New Zealanders from flying to Australia.

Monis' former partner Noleen Hayson Pal, 30, was stabbed 18 times and set alight outside her Werrington unit in April 2013.

Against a backdrop of fear and uncertainty following the hostage taking in Sydney, thousands of ordinary Australians turned to social media to spread a message of unprecedented tolerance and solidarity.

These are the six words that say it all. "I'll be back at work tomorrow."

Whenever there is a dramatic event, social media instantly comes alive with comment and conjecture as facts vie for attention with fiction.

Hostages caught in Sydney's siege have revealed how some of them managed to escape when the gunman's back was turned.

Haron Monis was known to authorities for a string of offences.

The MP who chaired the anti-terrorist legislation rushed through Parliament last week, MarkMitchell, says the bill was "100 per cent" justified.

Some hostages held in the Sydney cafe may have had thoughts of attacking the hostage takers as survival instincts "come to the fore", a psychologist says.