Al Qaida and Mujahedeen
Bin Laden was an asset of CIA and was used to fight against Soviet Union in 80s. At that time Bin Laden's group was called as Majahideen. Qaida was used as a data base in communiction.
In early 90, when Soviet Union collapsed, US intelligence turned its resource on to Mid-east countries which are rich in oil resource, they revive the retired asset - Bin Laden. Bin Laden returned to Islamic world trying to provoke a conflict so that US could justify an interference and invasion.
On 2001, when US inside group had their puppet Bush to be the president, the war was ready. 911 was done to justify the war. To prevent people to link the "terror attack" with Islamic fannatic (Mujahedeen) and CIA, US intelligence then starts to use "Al Qaida" as "terrorist" group to justify the "war on terror". Since then, they blame every terror attack on "Al qaida". Al Qaida could be viewed as a group of special opratives commanded by US intelligence. Their mission is to activate false flag terror attack on civilians to justify US military action.
What Al Qaida did - bombing WTC, killing US civilians on 911, and bombing innocent civilians in Iraq, all targetted at ordinary people. It tarnished Islam as savage, inhuman, cruel. Who benefited? Who expanded the police power by Patriot Act? Who got fat budget? If you can answer these questions, then you know what is Al Qaida - a tool of US intelligence.