http://news.bbc.co.uk/2/hi/south_asia/7642330.stm By Owen Bennett-Jones
BBC World Service
Al Qaeda training camp video
Pakistan believes al-Qaeda's presence has been massively reduced
Seven years after 9/11, the taunting continues.
"Leave us alone to establish the Islamic Shura state which will unite the Muslims of the earth in truth and justice," said a recent al-Qaeda webcast.
"A single word of American protest will be silenced by a thousand Islamic bombs."
But since that morning in 2001, al-Qaeda has not landed one blow inside the United States - and this year the head of the CIA said the group had suffered "strategic defeat."
So how strong is al-Qaeda?
'Collective losers'