Osama bin Laden

(CNN) -- Is al Qaeda looking to ground transportation as a promising target after the introduction of intense security measures for air travel? And are its supporters able to operate out of Iran ...

A former personal secretary to Osama bin Laden got a strong rebuke from a judge Tuesday as he was sentenced to life in prison for a second time after claiming the Sept. 11 attacks and Superstorm Sandy were "God's punishment" for injustice against himself and others by the United States.

Federal prosecutors in the US have charged a former Washington DC primary school teacher with production and possession of child pornography.

It is difficult to believe that there is an operational alliance between Iran, a hard-line Shia Muslim state, and al-Qaeda, an extremist Sunni Muslim outfit.

The trickery of Theon Greyjoy’s interrogation actually contains lessons about interrogating suspects like the suspected Boston bomber. Photos: FBI, HBO; illo: Joe Brown/Wired Perhaps the best ...

Canadian authorities claim al-Qaida operatives in Iran directed a failed plot to attack a passenger train. Iran denies it has any links to the two suspects. What falls in between is Iran's complicated history with the terror group that has included outright hostility, alliances of convenience and even overtures by Tehran to assist Washington after the Sept. 11, 2001, attacks.

Editor's note: Peter Bergen is CNN's national security analyst, the author of "Manhunt: The Ten-Year Search for bin Laden -- From 9/11 to Abbottabad" and a director at the New America Foundation. ...

Battered by a French-led military campaign in Mali, al-Qaida's North African arm is trying something new to stay relevant: Twitter. The PR campaign by the terror network seeks to tap into social grievances and champion mainstream causes such as unemployment, all in bid to reverse decline and win new followers.

Theresa May has lost her latest bid to remove hate cleric Abu Qatada after judges refused permission to take the case to the highest court in the country.

Spanish police have detained two suspected terrorists with links to al-Qaeda's North African branch who may have been planning an attack in Europe.