Bill Roggio at The Fourth Rail analyzes the Golden Mosque bombing and points his finger at al-Qaeda in Iraq. Interestingly, there are suspects in custody, and no doubt strenuous "interrogations" have begun to determine who's behind the attack.
The attempt to drag Iraqi's Shiites and Sunnis into a bloody civil war intensifies. The dome of the Shiite Al Askari Mosque in Samarra, or Golden Mosque, has been destroyed by a well planned and well executed commando-style raid of insurgents dressed as Iraqi police. According to CNN, "A group of men dressed like Iraqi police commandos set off explosives." It appears suspects are now in custody, "Ten people -- all dressed as Iraqi police commandos."
The likely culprit is al-Qaeda in Iraq, or groups underneath the newly created Mujahedeen Shura Council. Zarqawi has desired a sectarian war between Shiites and Sunnis since his entry into the conflict, as he clearly stated in his letter to Osama bin Laden. al-Qaeda in Iraq has gone to through great pains of late to deny this, and will very likely not take credit in such an overt attack on the Shiite faithful. Silence and uncertainly will play into their hand, and feed conspiracy theories on who committed such an act. But the nature of the target and the sophistication of such an attack undeniably points to al-Qaeda. The detained "commandos" will be thoroughly interrogated, and the FBI will likely be called in to determine the nature of the charges used to destroy the dome.
You can read the rest of Roggio's post here.