9/11 ten years on: special report

Al-Qaeda leader Osama bin Laden is killed following a firefight with US troops in Pakistan. But International Editor Lindsey Hilsum questions how significant his death will be for the war on terror.

As Osama bin Laden is killed by US special forces, defence analyst Anthony Tucker-Jones – who was part of the original team hunting the al-Qaeda leader – assesses the implications.

US Navy Seals commandos working alongside the CIA carried out the kill-team mission to take out Osama bin Laden. There would have been no attempt to capture him, writes Online Editor Ed Fraser.

The man who live-tweeted the US raid on Osama bin Laden – without realising – becomes a Twitter sensation. He moved to Abbottabad in Pakistan for a quiet life, but took with him the social media age.

As the war in Afghanistan approaches a milestone, Captain Doug Beattie writes from the Helmand frontline on how progress only comes with a price paid by both soldiers and the local population.

Channel 4 News examines the backgrounds of two wanted terrorists linked to the Yemen cargo plane bomb plot and al-Qaeda in the Arabian Peninsula.

From the attacks on the United States on 9/11 to the growth of Islamist radicals in Yemen, the global terrorist threat has continued to grow despite the efforts of western intelligence agencies.

There are hundreds of new leads every month in the fight against Islamist terrorism, Simon Israel hears from the head of the UK’s security services, Jonathan Evans.

Commemorations mark the ninth anniversary of the 9/11 attacks as a pastor, who planned to burn copies of the Koran, travels to New York to challenge a proposed Islamic cultural centre.

Former Prime Minister Tony Blair tells Channel 4 News that plans to burn copies of the Koran do not represent the west, as President Obama warns it could be used as an al-Qaeda recruitment tool.

US President Barack Obama defends the right of Muslims to build a mosque near Ground Zero, in New York, despite local opposition and a vocal campaign by families of 9/11 victims to block the project.

Writing for Channel 4 News as the UK death toll reached 300, former British commander Colonel Richard Kemp said the UK could not afford to leave the country until its objectives are achieved.

As Sir John Chilcot continues his inquiry into the Iraq conflict, Channel 4 News discovers pro-war voices are becoming hard to find.

At the start of the second week of the Iraq inquiry, four well-known opponents of the conflict gave their reaction to the findings so far to Channel 4 News.