The desert kingdom supplies the cash and the killers
It was an occasion for tears and celebration as the Knights of Martyrdom proclaimed on video: "Our brother Turki fell during the rays of dawn, covered in blood after he was hit by the bullets of the infidels, following in the path of his brother." The flowery language could not disguise the brutal truth that a Saudi family had lost two sons fighting for Al-Qaeda in Iraq.
The elder brother, Khaled, had been a deputy commander of a crack jihadist "special forces" unit. After his "glorious" death, Turki took his place.
"He was deeply affected by the martyrdom of his brother," the Knights said. "He became more ambitious and more passionate about defending the land of Islam and dying as a martyr, like his brother."
Extremist clerics provide a stream of recruits to some of the world's nastiest trouble spots.
An analysis by NBC News suggested that the Saudis make up 55% of foreign fighters in Iraq. They are also among the most uncompromising and militant.
Half the foreign fighters held by the US at Camp Cropper near Baghdad are Saudis. They are kept in yellow jumpsuits in a separate, windowless compound after they attempted to impose sharia on the other detainees and preached an extreme form of Wahhabist Islam.
In recent months, Saudi religious scholars have caused consternation in Iraq and Iran by issuing fatwas calling for the destruction of the great Shi'ite shrines in Najaf and Karbala in Iraq, some of which have already been bombed. And while prominent members of the ruling al-Saud dynasty regularly express their abhorrence of terrorism, leading figures within the kingdom who advocate extremism are tolerated.