The killing of the American-born Islamic cleric Anwar al-Awlaki in Yemen is another success in fighting Al Qaeda. But core leaders of the group who are likely planning the next big attack are probably operating outside the hot spots of Pakistan, Afghanistan, Yemen, and the Horn of Africa.
A timeline of events on September 11, 2001 and beyond.
As 10-year commemorations of 9/11 get under way, the public now has access to a number of previously unreleased audio recordings from the morning of September 11, 2001.
A threat remains from the Al Qaeda core as well as the splinter groups it inspired. But bin Laden's global terrorist franchise and its grand vision of challenging 'imperialist' America is waning.
Three Qataris, aided by a man from California, conducted surveillance of future terrorist attack sites in the weeks before 9/11, according to a newly released US diplomatic cable from WikiLeaks.
German authorities say the mosque, which is where the 9/11 plotters met and reportedly was host to Muslims from many nations, was still a 'central attraction' for militants. European officials are concerned about the growing transnational nature of Islamist groups.