I suppose they just showed up for the War and stayed for the random slaughter?

"Sir Jeremy Greenstock, until recently London's ambassador to the United Nations, also said it was clear Osama bin Laden's al Qaeda network was involved in Iraq's postwar violence but its role was difficult to track as it was constantly "mutating."(emphasis added)

Does any reasonable person actually believe that Al-Qaeda appeared in Iraq overnight? Without any kind of infrastructure present in the country? Without any kind of support from the deposed regime? If you believe that they just appeared in the war's aftermath, you are deluded. Read the rest of the story here.