on Iraqi Shia and Iraqi security forces, again! And it's not surprising, because it's happened so many times before! Iraqis have been the biggest victims of Al Qaeda's terrorism and assassinations in the world, I reckon.
"A suicide bomber driving an explosives-packed vehicle rammed his way into a barricaded police compound yesterday, killed 20 police officers, and wounded 40 others in the second major deadly blast in Iraq this week.
...There was no immediate claim of responsibility for this bombing or for another on Tuesday that killed nine people in a Shi’ite neighborhood in Baghdad. But the types of targets — Iraqi security forces and Shi’ite Muslims — indicate Al Qaeda in Iraq’s involvement."
Between 2003 and 2010, there were 1,759 suicide bombings in Iraq, according to this Wikipedia article.
PS: I hope Usama bin Ladin is burning in HELL now, and I hope the remainder of Al Qaeda follow him!!!