The history of Osama Bin Laden's network and major attacks linked to it.

Osama Bin Laden warns of fresh attacks on the US in a broadcast aired days before the presidential election.

An audio tape said to have been recorded by Osama Bin Laden's deputy urges attacks on the US and its allies.

Pakistan's president says a "major terrorist threat" has been eliminated with the killing of a key al-Qaeda suspect.

One of Pakistan's most wanted al-Qaeda suspects has been killed, Pakistani officials say.

Osama Bin Laden's deputy claims US troops are in a no-win situation in Iraq and Afghanistan.

The United Nations says that sanctions against al-Qaeda and the former Taleban have had little effect.

Critics argue that the US is still not thinking imaginatively about how to fight the war on terror, Gordon Corera hears.

How deep are ties between Abu Musab al-Zarqawi, a Jordanian militant thought to be in Iraq, and Bin Laden?

Gordon Corera considers how significant the al-Qaeda leader is - and what his capture or killing might mean.

Three years after the 11 September attacks, the al-Qaeda network is an indefatigable driving force behind many affiliated groups.

How much information should the public be given when a terrorist alert is issued, asks Paul Reynolds.

BBC News Online looks at the clues pointing to al-Qaeda or Eta involvement in the Madrid attacks.

The Pentagon and the CIA have opened up a new front in the war on terror - in the Horn of Africa.

BBC News Online's Paul Reynolds assesses whether al-Qaeda could have been responsible for the attacks on Israelis in Kenya.

BBC News Online pieces together the people and events that appear to have led to the devastating bombing in Bali.

BBC News Online looks at the main Muslim militant groups operating in Indonesia.

Civil liberties lawyers welcome the US Supreme Court ruling on terror detainees.

BBC News Online looks at what happens to inmates of the US prison who get transferred home.

The US is urged to free Guantanamo inmates or set up fair trials as a major human rights forum ends in Yemen.

The case of al-Qaeda suspect Zacarias Moussaoui is testing the legal limits of the US Government's war on terror.

Most of the detainees at Guantanamo Bay have a long wait to find out what the US plans for them.

George W Bush's plan to try terror suspects in military courts has provoked much controversy.

BBC News Online explains how Bin Laden's al-Qaeda network grew up and the connections with other militants.

Middle East analyst Fiona Symon charts the background to the Islamic idea of a holy struggle, or jihad.

A timeline of some of the intelligence, sightings, and rumours regarding the whereabouts of Osama Bin Laden.

Allan Little explores the definitions of terrorism and the unresolved problems of addressing the global grievances leading to acts of terror..

If you're a crook or a terrorist, there are a number of ways of keeping your finances hidden from prying eyes.