
** FILE ** Iraqis gather at the ruins of the al-Askari mosque in Samarra, Iraq, in February 2006. A car bomb killed eight pilgrims on Thursday, Feb. 10, 2011, as they made their way to the reconstructed mosque, one of Iraq's holiest Shi'ite shrines. (AP Photo/Khalid Mohammed, File)

A bomb detonates on a street in Kirkuk, Iraq, on Wednesday as security forces and emergency vehicles pass along the main road on their way to attend the scene of another explosion. Car bombs ripped through the oil-rich Iraqi city killing at least six and wounding some 35 others. (Associated Press)

Security forces, emergency responders and civilians stand near a destroyed building after a car-bomb attack in Kirkuk, Iraq, 180 miles north of Baghdad, on Wednesday, Feb. 9, 2011. (AP Photo/Emad Matti)

Iraqi Prime Minister Nouri al-Maliki said Friday, Feb. 4, 2011, he will return half of his annual salary to the government's treasury in a symbolic effort to balance the standard of living between the nation's rich and poor. (AP Photo/Hadi Mizban, File)

People gather around a destroyed shop at the scene of a car bomb attack in Baghdad, Iraq, on Thursday, Jan. 27, 2011. A car bomb ripped through a funeral tent in a mainly Shiite area of Baghdad on Thursday, killing and wounding scores of people and prompting scuffles between police and Iraqis angry about security failures. (AP Photo/Khalid Mohammed)

** FILE ** Iraqis gather at the site of a car bomb attack in Baghdad, Iraq, Monday, Jan. 24, 2011. (AP Photo/Hadi Mizban)

Shi'ite pilgrims pray at the Imam Abbas shrine in Karbala, 50 miles south of Baghdad, Iraq, Sunday, Jan. 23, 2011, as faithful flock to the holy city for Arbaeen, marking the end of the forty-day mourning period after the anniversary of the 7th century martyrdom of Imam Hussein, the Prophet Muhammad's grandson. (AP Photo/Ahmed al-Husseini)

Workers sweep away debris after a bombing in Baghdad on Sunday, Jan. 23, 2011. A flurry of morning blasts killed and wounded several across the city, police said, in what one Iraqi official called an attempt to undermine security ahead of a much anticipated meeting of Arab heads of state in two months. (AP Photo/Karim Kadim)

A protester wearing a Tony Blair mask, takes part in a demonstration against the former British prime minister outside the venue of the inquiry into the Iraq war, in London, Friday, Jan. 21, 2011. (AP Photo/Lefteris Pitarakis)