Michael Clarke outlines the milestones of the last decade since the attacks of 11 September 2001.

A look back on the 9/11 attacks and the way they shaped our lives today.

September 11th shaped greatly the way that we think about development, and securitized the development agenda.

With the deficit-reduction "Super Committee" deliberations approaching, and the prospect of deeper and more damaging cuts to defense spending in sight.

An unconfirmed threat shows that terrorism is resiliant.

North Korean leader Kim Jong Il and his son watched a massive military parade in Pyongyang on Friday, to mark the 63rd anniversary of the country's founding. (Sept. 9)

Former militants freed from jail in Indonesia find jobs with help from a de-radicalisation scheme.

Time ticks away on rebel ultimatum for Pro-Gaddafi forces in Sirte and Bani Walid to surrender or die.

Widespread violence across Syria as amateur video appears to show Syrian forces unloading weapons on a man lying in the street. Deborah Lutterbeck reports.

Images from 9/11 are still chilling, even 10 years after the attacks shook the world. But in the country that's been at the forefront of that war, it can be hard to find people who remember why foreign troops arrived in the first place.

A NASA astronaut recalls seeing the 9/11 terrorist attacks from the international space station

A look at American security efforts that has prevented a second terrorist attack since September 11th.  

New York City Mayor Michael Bloomberg says a terror threat against the city is credible but not corroborated.

This was the first massive attack the US ever suffered on its mainland: the Trade Center in New York. The Pentagon. If passengers hadn't overpowered the hijackers on a fourth plane, they might have struck the White House.

This was the first massive attack the US ever suffered on its mainland: the Trade Center in New York. The Pentagon. If passengers hadn't overpowered the hijackers on a fourth plane, they might have struck the White House.